Pakistan’s Nuclear Weapons: Proliferation and
Security Issues

Paul K. Kerr
Analyst in Nonproliferation
Mary Beth Nikitin
Specialist in Nonproliferation
June 10, 2011
Congressional Research Service
7-5700
www.crs.gov
RL34248
CRS Report for Congress
P
repared for Members and Committees of Congress

Pakistan’s Nuclear Weapons: Proliferation and Security Issues

Summary
Pakistan’s nuclear arsenal probably consists of approximately 60-90 nuclear warheads, although it
could be larger. Islamabad is producing fissile material, adding to related production facilities,
and deploying additional delivery vehicles. These steps could enable Pakistan to undertake both
quantitative and qualitative improvements to its nuclear arsenal. Whether and to what extent
Pakistan’s current expansion of its nuclear weapons-related facilities is a response to the 2008
U.S.-India nuclear cooperation agreement is unclear. Islamabad does not have a public, detailed
nuclear doctrine, but its “minimum credible deterrent” is widely regarded as designed to dissuade
India from taking military action against Pakistan.
Pakistan has in recent years taken a number of steps to increase international confidence in the
security of its nuclear arsenal. In addition to overhauling nuclear command and control structures
since September 11, 2001, Islamabad has implemented new personnel security programs.
Moreover, Pakistani and some U.S. officials argue that, since the 2004 revelations about a
procurement network run by former Pakistani nuclear official A.Q. Khan, Islamabad has taken a
number of steps to improve its nuclear security and to prevent further proliferation of nuclear-
related technologies and materials. A number of important initiatives, such as strengthened export
control laws, improved personnel security, and international nuclear security cooperation
programs have improved Pakistan’s security situation in recent years.
However, instability in Pakistan has called the extent and durability of these reforms into
question. Some observers fear radical takeover of a government that possesses a nuclear bomb, or
proliferation by radical sympathizers within Pakistan’s nuclear complex in case of a breakdown
of controls. While U.S. and Pakistani officials continue to express confidence in controls over
Pakistan’s nuclear weapons, continued instability in the country could impact these safeguards.
For a broader discussion, see CRS Report RL33498, Pakistan-U.S. Relations, by K. Alan
Kronstadt. This report will be updated.

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Pakistan’s Nuclear Weapons: Proliferation and Security Issues

Contents
Background ................................................................................................................................ 1
Nuclear Weapons ........................................................................................................................ 3
Responding to India? ............................................................................................................ 6
Fissile Material Cutoff Treaty................................................................................................ 8
Delivery Vehicles ........................................................................................................................ 9
Nuclear Doctrine....................................................................................................................... 10
Command and Control .............................................................................................................. 11
Security Concerns ..................................................................................................................... 12
U.S. Assistance and Pakistani Nuclear Security ......................................................................... 16
Proliferation.............................................................................................................................. 19
The A. Q. Khan Network..................................................................................................... 19
Interactions with Al-Qaeda.................................................................................................. 20
Pakistan’s Response to the Proliferation Threat ................................................................... 21
Pakistan’s Civil Nuclear Program.............................................................................................. 23
Issues for Congress ................................................................................................................... 24

Contacts
Author Contact Information ...................................................................................................... 26

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Pakistan’s Nuclear Weapons: Proliferation and Security Issues

Background
Chronic political instability in Pakistan and Islamabad’s military efforts against the Taliban and
al-Qaeda have raised concerns about the security of Pakistan’s nuclear weapons. Some observers
fear that Pakistan’s strategic nuclear assets could be obtained by terrorists or used by elements in
the Pakistani government. Chairman of the Joint Chiefs of Staff Admiral Michael Mullen
described U.S. concern about the matter during a September 22, 2008, speech:
To the best of my ability to understand it—and that is with some ability—the weapons there
are secure. And that even in the change of government, the controls of those weapons haven't
changed. That said, they are their weapons. They're not my weapons. And there are limits to
what I know. Certainly at a worst-case scenario with respect to Pakistan, I worry a great deal
about those weapons falling into the hands of terrorists and either being proliferated or
potentially used. And so, control of those, stability, stable control of those weapons is a key
concern. And I think certainly the Pakistani leadership that I've spoken with on both the
military and civilian side understand that.
U.S. officials have generally expressed confidence in the security of Pakistan’s nuclear weapons.
President Obama addressed this issue in an April 29, 2009, press conference, stating, “I’m
confident that we can make sure that Pakistan’s nuclear arsenal is secure, primarily, initially,
because the Pakistani army, I think, recognizes the hazards of those weapons falling into the
wrong hands. We've got strong military-to-military consultation and cooperation.” He also
recognized the sensitivity of the issue for Pakistan, saying, “[w]e want to respect their
sovereignty, but we also recognize that we have huge strategic interests, huge national security
interests in making sure that Pakistan is stable and that you don't end up having a nuclear-armed
militant state.”1 Declining to engage in “hypotheticals” when asked if the United States is ready
to secure the nuclear arsenal if the Pakistani government could not do so, President Obama said
he felt “confident that that nuclear arsenal will remain out of militant hands.” More recently, then-
Director of National Intelligence Dennis Blair told the House Permanent Select Committee on
Intelligence February 3, 2010, that “from what we see of … measures that they take,” Pakistan is
keeping its nuclear weapons secure. Furthermore, then-Department of State spokesperson Philip
Crowley told Fox News December 1, 2010, that the United States believes that Pakistan’s
“nuclear weapons are secure.”2 And State Department spokesperson Mark Toner told reporters
May 26, 2011, that “the safeguard and security of Pakistan’s nuclear weapons are of concern, but
... it’s an issue that we discussed with the Pakistani government, and we're sure that they're under
safeguard.”
The collapse or near-collapse of the Pakistani government is probably the most likely scenario in
which militants or terrorists could acquire Pakistani nuclear weapons. General David H. Petraeus,
the former Commander of U.S. Central Command, testified March 31, 2009, that “Pakistani state
failure would provide transnational terrorist groups and other extremist organizations an
opportunity to acquire nuclear weapons and a safe haven from which to plan and launch attacks.”
More recently, Gary Samore, National Security Council Coordinator for Arms Control and Non-
Proliferation, stated in a May 2011 interview that

1 President Obama’s 100th-Day Press Briefing transcript, April 29, 2009, accessed at http://www.nytimes.com/2009/04/
29/us/politics/29text-obama.html?_r=1&pagewanted=print.
2 “Happening Now” Interview with P.J. Crowley, Fox News Channel, December 1, 2010.
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The Pakistani government takes the nuclear security threat very seriously, and they’ve put a
lot of resources into trying to make sure that their nuclear facilities and materials and
weapons are well secured. There’s no lack of recognition that this is a very important issue,
and there’s no lack of incentive on the part of the Pakistani government to maintain control.
What I worry about is that, in the context of broader tensions and problems within Pakistani
society and polity—and that’s obviously taking place as we look at the sectarian violence
and tensions between the government and the military and so forth—I worry that, in that
broader context, even the best nuclear security measures might break down. You’re dealing
with a country that is under tremendous stress internally and externally, and that’s what
makes me worry. They have good programs in place; the question is whether those good
programs work in the context where these broader tensions and conflicts are present.3
Additionally, former Pakistani President Pervez Musharraf told CNN May 26, 2011, that “[i]f
Pakistan disintegrates, then it can be dangerous. Otherwise, if Pakistan’s integrity is there, and
which I'm sure it will be there as long as the armed forces of Pakistan are there, there is no danger
of the nuclear assets or strategic assets falling in any terrorist hands.”4
Pakistani efforts to improve the security of its nuclear weapons have been ongoing and include
some cooperation with the United States; Musharraf told a journalist that Islamabad has “given
State Department nonproliferation experts insight into the command and control of the Pakistani
arsenal and its on-site safety and security procedures.”5 Since the 1998 Pakistani and Indian
nuclear tests, the international community has increased attention to reducing the risk of nuclear
war in South Asia. The two countries most recently came to the brink of full-scale war in 1999
and 2002, and, realizing the dangers, have developed some risk reduction measures to prevent
accidental nuclear war. Islamabad has also developed its command and control systems and
improved the security of its military and civilian nuclear facilities. Since the 2004 revelations of
an extensive international nuclear proliferation network run by Pakistani nuclear official Abdul
Qadeer Khan, as well as possible connections between Pakistani nuclear scientists and Al Qaeda,
Islamabad has made additional efforts to improve export controls and monitor nuclear personnel.
The main security challenges for Pakistan’s nuclear arsenal are keeping the integrity of the
command structure, ensuring physical security, and preventing illicit proliferation from insiders.
Pakistan continues to produce fissile material for weapons and appears to be augmenting its
weapons production facilities, as well as deploying additional delivery vehicles—steps that will
enable both quantitative and qualitative improvements in Islamabad’s nuclear arsenal.

3 Peter Crail, Daniel Horner, and Daryl G. Kimball, “Pursuing the Prague Agenda: An Interview With White House
Coordinator Gary Samore,” Arms Control Today, May 2011.
4 “Interview with Pervez Musharraf,” Piers Morgan Tonight, CNN, May 26, 2011.
5 Seymour M. Hersh, “Defending the Arsenal: In an Unstable Pakistan, Can Nuclear Warheads be Kept Safe?” The
New Yorker, November 16, 2009.
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Nuclear Weapons6
Pakistan’s nuclear energy program dates back to the 1950s, but it was the loss of East Pakistan
(now Bangladesh) in a war with India that probably triggered a January 1972 political decision
(just one month later) to begin a secret nuclear weapons program.7 Deterring India’s nuclear
weapons and augmenting Pakistan’s inferior conventional forces are widely believed to be the
primary missions for Islamabad’s nuclear arsenal. Observers point to India’s 1974 “peaceful”
nuclear explosion as the pivotal moment that gave additional urgency to the program. Pakistan
produced fissile material for its nuclear weapons using gas-centrifuge-based uranium enrichment
technology, which it mastered by the mid-1980s. Highly-enriched uranium (HEU) is one of two
types of fissile material used in nuclear weapons; the other is plutonium. The country’s main
enrichment facility is a centrifuge plant located at Kahuta; Pakistan may have other enrichment
sites.8 Islamabad gained enrichment-related technology from many sources. This extensive
assistance is reported to have included uranium enrichment technology from Europe, blueprints
for a small nuclear weapon from China, and missile technology from China.
The United States had information during the 1970s that Pakistan was constructing a uranium
enrichment facility.9 A.Q. Khan has stated that Pakistan began enriching uranium in 1978 and
produced HEU in 1983.10 Although Pakistan subsequently told the United States that it would
produce only low-enriched uranium (which is not used as fissile material in nuclear weapons),11
U.S. and Pakistani officials who were in government in 1990 indicated during a 1994 meeting
that Islamabad decided sometime after October 1989 to resume producing HEU.12 However,
another Pakistani official suggested during the same meeting that the decision may have
happened sooner.13

6 Pakistan has signed neither the nuclear Nonproliferation Treaty nor the Comprehensive Test Ban Treaty. However,
UN Security Council Resolution 1172, which was adopted in 1998 after India and Pakistan’s nuclear tests earlier that
year, called upon those countries to “stop their nuclear weapon development programmes, to refrain from
weaponization or from the deployment of nuclear weapons, to cease development of ballistic missiles capable of
delivering nuclear weapons and any further production of fissile material for nuclear weapons.”
7 See, for example, U.S. Department of Defense, Proliferation: Threat and Response, April 1996, p. 37.
8 Zia Mian, A.H. Nayyar, R. Rajaraman and M.V. Ramana, “Fissile Materials in South Asia: The Implications of the
U.S.-India Nuclear Deal,” International Panel on Fissile Materials, September 2006 and David Albright, “Securing
Pakistan’s Nuclear Infrastructure,” in A New Equation: U.S. Policy toward India and Pakistan after September 11
(Washington: Carnegie Endowment for International Peace) May 2002. For a list of Pakistani nuclear facilities, see
chart in Pakistan chapter of Joseph Cirincione, Jon B. Wolfsthal, and Miriam Rajkumar, Deadly Arsenals, Carnegie
Endowment for International Peace, 2005.
9 For example, a 1978 memorandum from the National Intelligence Officer for Nuclear Proliferation stated that
Pakistan had a uranium enrichment plant “under construction,” but added that Islamabad had not yet acquired certain
key components. Available at http://www.gwu.edu/~nsarchiv/nukevault/ebb333/doc03.pdf.
10 “Nuclear Bomb Was Manufactured in 1984: Dr Abdul Qadir Khan,” Islamabad Jinnah, July 19, 2010; “Pakistan: Dr
Abdul Qadeer Khan Discusses Nuclear Program in TV Talk Show,” Islamabad Tonight, Aaj News Television, August
31, 2009.
11 That agreement is referenced in Shirin Tahir-Kheli, Memorandum for Robert B. Oakley, “Dealing with Pakistan’s
Nuclear Program: A U.S. Strategy.” July 23, 1987.
12 Michael Krepon and Mishi Faruqee, eds., Conflict Prevention and Confidence-Building Measures in South Asia: The
1990 Crisis
, The Henry L. Stimson Center Occasional Paper No. 17, April 1994, pp. 7, 40, 42.
13 Krepon and Faruqee, 1994, p. 31.
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The United States had information during the 1970s and early 1980s that Pakistan was pursuing
nuclear weapons designs, but exactly when Pakistan produced a workable nuclear explosive
device is unclear. 14 A 1985 National Intelligence Council report stated that Pakistan “probably
has a workable design for a nuclear explosive device” and was “probably ... a year or two away
from a capacity to produce enough” highly enriched uranium for such a device.15 A 1987 National
Security Council (NSC) memorandum described Pakistan’s “continued pursuit ... of its nuclear
weapons option.”16 A 1993 NSC report to Congress stated that Islamabad’s nuclear weapons
efforts “culminated with the capability to rapidly assemble a nuclear device if necessary by the
end of the 1980s.”17 A.Q. Khan stated in an interview published in May 1998 that Islamabad
“attained” the capability to detonate such a device “at the end of 1984.”18 Similarly, Khan
reportedly stated in a January 2010 speech that Pakistan “had become a nuclear power” in 1984
or 1985.19 In any case, President Bush’s failure to certify in 1990 that Pakistan did not “possess a
nuclear explosive device” led to a cut-off in military and financial aid under the Pressler
Amendment.20
After India conducted nuclear weapon tests on May 11 and May 13, 1998, Pakistan’s government
responded on May 28 and May 30 with six tests in western Pakistan. Test yields were about 10
kilotons and 5 kilotons, according to seismic analysis.21 The United States imposed additional
sanctions after the tests, but these were lifted after the September 11, 2001, terrorist attacks on the
United States. According to most public estimates, Pakistan has about 60 nuclear weapons,
though it could have more;22 a recent public estimate from two prominent subject experts stated
that the country has between 70 and 90 nuclear weapons.23 Pakistan’s nuclear warheads use an

14 See, for example, a 1978 Central Intelligence Agency report, available at http://www.faqs.org/cia/docs/44/
0000107983/(UNTITLED)-RE.html, as well as a 1983 State Department document, available at http://www.gwu.edu/
~nsarchiv/NSAEBB/NSAEBB114/chipak-11.pdf.
15 According to a 1978 State Department cable, the United States estimated that it would take Pakistan “at least” three
to five years to produce a nuclear explosive device. Available at http://www.gwu.edu/~nsarchiv/nukevault/ebb333/
doc24.pdf.
16 Tahir-Kheli, 1987
17 National Security Council, Report to Congress on Status of China, India and Pakistan Nuclear and Ballistic Missile
Programs
, 1993. Available at http://www.fas.org/irp/threat/930728-wmd.htm.
18 “Pakistan: Qadeer Khan Interviewed on Pakistan N-Test,” The News, May 30, 1998. Khan made a similar claim in
February and July 2010 interviews (“Pakistan: Dr A.Q. Khan Condemns Nawaz Sharif for Not Testing Nuclear Bomb,”
Islamabad Khabrain Online, February 20, 2010; Islamabad Jinnah, July 19, 2010).
19 Khalid Iqbal, “Pakistan to Never Face 1971-Like Situation Again: AQ Khan,” The News, January 10, 2010.
20 The Pressler Amendment (August 1985) linked aid and military sales to two certification conditions: (1) that
Pakistan not possess a nuclear explosive device; and (2) that new aid ‘will reduce significantly the risk’ that Pakistan
will possess such a device. For background summary of sanctions legislation, see CRS Report 98-486, Nuclear
Sanctions: Section 102(b) of the Arms Export Control Act and Its Application to India and Pakistan
, by Jeanne J.
Grimmett, and CRS Report RS22757, U.S. Arms Sales to Pakistan, by Richard F. Grimmett.
21 Seismic data showed yields less than those officially announced by Pakistan and India. See Gregory van der Vink,
Jeffrey Park, Richard Allen, Terry Wallace and Christel Hennet, “False Accusations, Undetected Tests and
Implications for the CTB Treaty,” Arms Control Today, May 1998 http://www.armscontrol.org/act/1998_05/
vimy98.asp.
22 “Global Fissile Material Report 2007,” International Panel on Fissile Materials http://www.fissilematerials.org/ipfm/
site_down/gfmr07.pdf; SIPRI Yearbook 2007. The International Panel on Fissile Materials estimates that Pakistan has
enough fissile material (highly enriched uranium and plutonium) for 65-80 nuclear weapons; this estimate assumes 25
kilograms of HEU per weapon and 4.5-6 kilograms of plutonium per weapon (“Banning the Production of Fissile
Materials for Nuclear Weapons: Country Perspectives on the Challenges to a Fissile Material (Cutoff) Treaty,”
International Panel on Fissile Materials, 2008. http://www.fissilematerials.org/ipfm/site_down/gfmr08cv.pdf).
23 Robert Norris and Hans Kristensen, “Nuclear Notebook: Pakistan’s Nuclear Forces, 2009,” Bulletin of the Atomic
(continued...)
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implosion design with a solid core of approximately 15-20 kilograms of HEU.24 Islamabad
reportedly continues to produce HEU for weapons at a rate of at least 100 kilograms per year.25
Pakistan has also pursued plutonium-based warheads and continues to produce plutonium for
weapons. Islamabad has received Chinese and European assistance for at least some of its
plutonium program. The 40-50 megawatt heavy-water Khushab plutonium production reactor has
been operating since 1998.26 It appears that Islamabad is constructing two additional heavy-water
reactors, which will expand considerably Pakistan’s plutonium production capacity, at the same
site.27 Additionally, Pakistan has a reprocessing facility28 at the Pakistan Institute of Science and
Technology (PINSTECH) and is apparently constructing other such facilities. Nuclear Fuel
reported in 2000 that, according to “senior U.S. government officials,” Islamabad had begun
operating a “pilot-scale” reprocessing facility at the New Laboratories facility at PINSTECH.29
Pakistan also appears to be constructing a second reprocessing facility at the site30 and may be
completing a reprocessing facility located at Chasma.31
Islamabad’s construction of additional nuclear reactors and expansion of its reprocessing
capabilities could indicate plans to increase and improve Pakistan’s nuclear weapons arsenal in
the near future. Indeed, then-Defense Intelligence Agency (DIA) Director Michael Maples told
the Senate Armed Services Committee on March 10, 2009, that “Pakistan continues to develop its
nuclear infrastructure, expand nuclear weapon stockpiles and seek more advanced warheads and
delivery systems.”32 Similarly, Admiral Mullen confirmed during the May 14, 2009, hearing that
the United States has “evidence” that Pakistan is expanding its nuclear arsenal.

(...continued)
Scientists, September/October 2009. This estimate is repeated by Norris and Kristensen in “Global Nuclear Weapons
Inventories, 1945–2010,” Bulletin of the Atomic Scientists, July/August 2010.
24 Robert Norris and Hans Kristensen, “Nuclear Notebook: Pakistan’s Nuclear Forces, 2007,” Bulletin of the Atomic
Scientists
, May/June 2007.
25 “Global Fissile Material Report 2007.”
26 A Pakistani newspaper reported in April 1998 that, according to a “top government source,” the reactor had begun
operating (“Pakistan’s Indigenous Nuclear Reactor Starts Up,” The Nation, April 13, 1998). A June 15, 2000 article
cited “U.S. officials” who indicated that the reactor had begun operating two years earlier (Mark Hibbs, “After 30
Years, PAEC Fulfills Munir Khan’s Plutonium Ambition,” Nucleonics Week, June 15, 2000). A 2001 Department of
Defense report stated that the reactor “will produce plutonium,” but did not say whether it was operating (U.S.
Department of Defense, Proliferation: Threat and Response, January 2001, p. 27).
27 David Albright and Paul Brannan, “Update on Khushab Plutonium Production Reactor Construction Projects in
Pakistan,” Institute for Science and International Security, April 23, 2009; Mark Hibbs and Shahid-ur-Rehman,
“Pakistan Civilian Fuel Cycle Plan Linked To NSG Trade Exception,” Nuclear Fuels, August 27, 2007.
28 “Reprocessing” refers to the process of separating plutonium from spent nuclear fuel.
29 Hibbs, June 15, 2000. According to a 1983 State Department document, the New Laboratories facility was “capable
of extracting small quantities of plutonium,” but large enough to “allow for expansion of reprocessing capacity.”
Available at http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB114/chipak-11.pdf.
30 David Albright and Paul Brannan, “Pakistan Expanding Plutonium Separation Facility Near Rawalpindi,” Institute
for Science and International Security, May 19, 2009. The 2001 Defense Department report stated that reprocessing
facilities “are under construction,” but did not identify any sites (Proliferation: Threat and Response, p. 27).
31 David Albright and Paul Brannan, “Chashma Nuclear Site in Pakistan with Possible Reprocessing Plant,” Institute
for Science and International Security, January 18, 2007. Construction on the facility was begun during the 1970s with
French assistance, but France cancelled its assistance for the project later that decade.
32 Norris and Kristensen explain that plutonium reactors “provide the Pakistani military with several options:
fabricating weapons that use plutonium cores, mixing plutonium with HEU to make composite cores, or using tritium
to ‘boost’ the warheads’ yield.” (Norris and Kristensen, 2007).
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Responding to India?
Pakistani officials have indicated that they have already determined the arsenal size needed for a
minimum nuclear deterrent and that they will not engage in an arms race with India. Pakistan’s
Foreign Secretary stated in October 2007 that Pakistan “will not be the first to test in our
region.”33 Moreover, the government’s National Command Authority (NCA) “expressed
satisfaction” regarding “the pace of development and effectiveness of Pakistan’s strategic
deterrence,” according to a December 14, 2010, statement.34 Nevertheless, Pakistan appears to be
increasing its fissile production capability and improving its delivery vehicles in order to hedge
against possible increases in India’s nuclear arsenal. Islamabad may also accelerate its current
nuclear weapons efforts.
India has stated that it needs only a “credible minimum deterrent,” but New Delhi has never
defined what it means by such a deterrent and has refused to sign the Comprehensive Test Ban
Treaty. Furthermore, both the agreement and associated 2008 decision by the Nuclear Suppliers
Group (NSG) to exempt India from some of its export guidelines will renew New Delhi’s access
to the international uranium market. This access will result in more indigenous Indian uranium
available for weapons because it will not be consumed by India’s newly safeguarded reactors.35
Pakistani officials have offered estimates for the number of additional nuclear weapons that New
Delhi could build. For example, Wajid Shamsul Hasan, Pakistan’s High Commissioner to the
United Kingdom, argued in an October 2010 letter to a British newspaper that eight Indian
nuclear reactors that will not be subject to International Atomic Energy Agency (IAEA)
safeguards have the potential to produce 280 nuclear weapons annually.36 India currently has
approximately 60-100 nuclear weapons, according to public estimates.37

Pakistani officials have stated that the government may need to increase significantly its nuclear
arsenal in response to possible Indian plans to do the same. According to an April 2006 television
broadcast, Pakistani officials from the government’s NCA expressed “concern” that the 2008
U.S.-India nuclear cooperation agreement could tilt the strategic balance between India and
Pakistan in favor of the former. The officials suggested that Islamabad may need to increase or
improve its nuclear arsenal in order to “to meet all requirements of minimum credible defence
deterrence.”38 (See the “Nuclear Doctrine” section for more on Pakistan’s deterrence concept).
Similarly, Pakistan’s Permanent Representative to the IAEA wrote in July 2008 that the
agreement could cause a nuclear arms race between Pakistan and India.39 Moreover, a Foreign

33 Statement by Foreign Secretary, Riaz Mohammad Khan, at the General Debate of the 62nd Session of the UN
General Assembly, October 2, 2007.
34 “Meeting of the National Command Authority,” Pakistan Official News, December 14, 2010.
35 See CRS Report RL33016, U.S. Nuclear Cooperation with India: Issues for Congress, by Paul K. Kerr.
36 “Pakistan for Reducing Existing Stocks of Fissile Material: Wajid,” Associated Press of Pakistan, October 19, 2010.
If Hasan’s estimate assumes that Indian weapons designers could build weapons which would each contain
approximately 4.5 kilograms of reactor-grade plutonium, then the estimate would be roughly consistent with a 2006
estimate that these reactors could produce 1,250 kilograms of reactor-grade plutonium per year (see Mian et al., 2006).
37 Arms Control Association Fact Sheet, http://www.armscontrol.org/factsheets/Nuclearweaponswhohaswhat.asp;
Robert Norris and Hans Kristensen, “Nuclear Notebook: Indian Nuclear Forces, 2010,” Bulletin of the Atomic
Scientists
, September/October 2010. This estimate is also found in Norris and Kristensen, “Global Nuclear Weapons
Inventories, 1945–2010,” Bulletin of the Atomic Scientists, July/August 2010.
38 “Pakistan Command Meeting Voices Concern Over Indo-US Nuclear Deal,” Pakistan TV, April 12, 2006.
39 Available at http://verificationthoughts.blogspot.com/2008/07/indian-separation-plan.html.
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Ministry spokesperson indicated during a May 21, 2009, press briefing that, despite the
government’s continued opposition to a “nuclear or conventional arms race in South Asia,”
Pakistan may need to increase its nuclear arsenal in response to Indian conventional and nuclear
arms expansion.
Illustrating this point, a Pakistani Foreign Office spokesperson reacted to India’s July 26, 2009,
launch of its first indigenously built nuclear-powered submarine by asserting that “continued
induction of new lethal weapon systems by India is detrimental to regional peace and stability,”
adding that “[w]ithout entering into an arms race with India, Pakistan will take all appropriate
steps to safeguard its security and maintain strategic balance in South Asia.” The submarine,
which is not yet deployed, will reportedly be capable of carrying nuclear-armed ballistic
missiles.40
Similarly, according to the January 2010 statement, the NCA identified “developments
detrimental to the objectives of strategic stability in the region,” including India’s acquisition of
“advanced weapons systems” and missile defense systems. The NCA also noted that the 2008
NSG decision described above, as well as subsequent nuclear fuel supply agreements that New
Delhi has concluded with several governments, “would enable India to produce substantial
quantities of fissile material for nuclear weapons by freeing up its domestic resources.” The
statement suggests that Pakistan could increase or improve its nuclear weapons in response to
these developments, but does not explicitly say so.
Whether and to what extent Pakistan’s current expansion of its nuclear weapons-related facilities
is a response to the U.S.-India agreement is unclear, partly because descriptions of the
government’s decisions regarding those facilities are not publicly available.
In addition to making qualitative and quantitative improvements to its nuclear arsenal, Pakistan
could increase the number of circumstances under which it would be willing to use nuclear
weapons. For example, Peter Lavoy has argued that India’s efforts to improve its conventional
military capabilities could enable New Delhi to achieve “technical superiority” in intelligence,
surveillance, and reconnaissance, as well as precision targeting, providing India with “the
capability to effectively locate and efficiently destroy strategically important targets in
Pakistan.”41 Islamabad could respond by lowering the threshold for using nuclear weapons,
according to Lavoy. Indeed, a Pakistan Foreign Ministry spokesperson warned in May 2009 that
Islamabad could take this step. (See the “Nuclear Doctrine” section.) The Pakistani government
may also consider fielding lower-yield nuclear weapons in order to increase the credibility of its
nuclear deterrent versus Indian conventional military operations.42

40 Bappa Majumdar, “India Launches Its First Nuclear-Powered Submarine,” Reuters, July 26, 2009; Nasir Jaffry,
“Pakistan Hits Out At ‘Detrimental’ Indian Nuclear Sub,” Agence France Presse, July 28, 2009; “Induction Of
Indigenous Nuke Sub Into Navy Longway Off: Experts,” The Press Trust of India, July 26, 2009; “N-Submarine Still
Wrapped In Secrecy,” Indo-Asian News Service, July 27, 2009.
41 Peter Lavoy, “Islamabad’s Nuclear Posture: Its Premises and Implementation,” in Pakistan’s Nuclear Future:
Worries Beyond War
, Henry Sokolski, Ed. (Carlisle, PA: Strategic Studies Institute) January 2008. p. 158.
42 Rezaul H Laskar, “Pak’s New Nuke Missile Aimed at India’s ‘Cold Start’ Doctrine,” The Press Trust of India
Limited
, April 20, 2011; “Nasr Missile Shatters India’s Dream of Limited War,” Nawa-e Waqt (BBC Monitoring South
Asia),
April 20, 2011; Sanjeev Miglani, “Pakistan Builds Low Yield Nuclear Capability, Concern Grows,” Reuters,
May 15, 2011.
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Nevertheless, Islamabad’s nuclear weapons program may face some budget constraints. Former
DIA Director Maples testified in 2009 that “the economic decline will likely slow” the
government’s progress in improving its nuclear and conventional military forces. Furthermore,
Pakistan’s nuclear weapons program reportedly faced “severe financial cuts” in 2009.43
Fissile Material Cutoff Treaty
Pakistani officials cite their concern about India’s recently acquired ability to expand its nuclear
arsenal as a reason for refusing to support negotiations in the Conference on Disarmament (CD),
which operates by consensus, on a Fissile Material Cutoff Treaty (FMCT).44 The CD adopted a
program of work45 in May 2009 that established a working group charged with negotiating an
FMCT on the basis of the 1995 “Shannon Mandate.”46 Although Pakistan supported the work
plan in 2009, it did not support the adoption of a draft program of work for 2010.47 Ambassador
Zamir Akram, Pakistan’s Permanent Representative to the CD, stated February 18, 2010, that
Islamabad had supported the 2009 program of work48 because the government had believed that
the Obama administration might reverse U.S. policy on nuclear cooperation with India.
Pakistan, which is widely regarded as the main opponent to the start of negotiations,49 argues that
a treaty on fissile material should not only prohibit the production of new material, but should
also require states with such material to reduce their stocks.50 A treaty without such a requirement,
according to Pakistan, will put the country at a disadvantage with respect to India because of what
Islamabad characterizes as New Delhi’s larger fissile material stocks and production capability.51
Although the Shannon Mandate states that it “does not preclude any delegation” from proposing
the inclusion of existing stocks in the negotiations, Islamabad argues that the CD ought to
determine the treaty’s scope prior to beginning negotiations.52 Akram stated June 1, 2011, that
Pakistan has not changed its position on this question.

43 “Pak Nuclear Program Faces 35% Cut,” The News, May 1, 2009.
44 For more information about the treaty, see CRS Report RL33865, Arms Control and Nonproliferation: A Catalog of
Treaties and Agreements
, by Amy F. Woolf, Mary Beth Nikitin, and Paul K. Kerr.
45 Decision for the Establishment of a Programme of Work for the 2009 Session, Conference on Disarmament,
CD/1864, May 29, 2009.
46 Report of Ambassador Gerald E. Shannon of Canada on Consultations on the Most Appropriate Arrangement to
Negotiate a Treaty Banning the Production of Fissile Material for Nuclear Weapons or Other Nuclear Explosive
Devices, CD/1299, March 24, 1995. Available at http://www.reachingcriticalwill.org/political/cd/shannon.html.
47 Draft Decision for the Establishment of a Programme of Work for the 2010 Session, Conference on Disarmament ,
CD/1889, July 6, 2010. Also see Statement by Ambassador Zamir Akram, Permanent Representative of Pakistan to the
Conference on Disarmament, August 31, 2010.
48 Statement by Ambassador Zamir Akram, February 18, 2010.
49 Zia Mian and A.H. Nayyar, “Playing the Nuclear Game: Pakistan and the Fissile Material Cutoff Treaty,” Arms
Control Today
, April 2010.
50 Akram, February 18, 2010.
51 Ibid.
52 Akram, August 31, 2010.
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Delivery Vehicles
Pakistan has two types of delivery vehicles for nuclear weapons: aircraft controlled by the
Pakistan Air Force and surface-to-surface missiles controlled by the Pakistan Army. Pakistan
could deliver its nuclear weapons using F-16 fighter aircraft purchased from the United States,
provided that modifications are made. It is widely believed that Islamabad has made the relevant
modifications to the F-16s previously sold to them by Washington.53 Although concerns have
been raised about the impact of these sales on the strategic balance in South Asia,54 the U.S.
government maintains that the sale of additional F-16s to Pakistan will not alter the regional
balance of power.55 The contract for provision of an additional 18 aircraft was signed in 2006, as
was the contract for the weapons for those aircraft and a contract to perform the mid-life upgrade
on Pakistan’s F-16A/B model aircraft.56 Pakistan’s F-16 fleet will, therefore, be expanded, but it
is unclear what portion of the fleet will be capable of a nuclear mission. Mirage V aircraft may
also be used as delivery vehicles.57
Pakistan has three types of ballistic missiles58 thought to be nuclear-capable: the solid-fuel Hatf-
III
(Ghaznavi), with a range of approximately 300-400 kilometers59; the solid-fuel Hatf-IV
(Shaheen), with a range of over 450 kilometers60; and the liquid-fuel Hatf-V (Ghauri), with an
approximate range of almost 1,300 kilometers.61 The solid-fuel Hatf-VI (Shaheen-2) missile,
when deployed, will be “capable of reaching targets out to 2,000 kilometers,” former DIA
Director Maples stated March 10, 2009,62 adding that Islamabad has made “significant progress”

53 The 1993 National Security Council report indicated that Pakistan would use these aircraft to deliver nuclear
weapons. See National Security Council, Report to Congress.
54 CRS Report RL33515, Combat Aircraft Sales to South Asia: Potential Implications, by Christopher Bolkcom,
Richard F. Grimmett, and K. Alan Kronstadt; Zachary Ginsburg, “US Renews Fighter Exports to Pakistan,” Arms
Control Today
, September 2007. http://www.armscontrol.org/act/2007_09/USPakistan.asp.
55 “Release of these systems would not significantly reduce India’s quantitative or qualitative military advantage.
Release of these modifications to Pakistan will neither affect the regional balance of power nor introduce a new
technology as this level of capability or higher already exists in other countries in the region.” Defense Security and
Cooperation Agency news release, June 28, 2006. http://www.dsca.mil/PressReleases/36-b/2006/Pakistan_06-11.pdf.
56 Pakistan has not exercised its option to purchase an additional 18 F-16 fighter aircraft (see CRS Report RS22757,
U.S. Arms Sales to Pakistan).
57 Norris and Kristensen, 2009; Salik, Naeem, The Genesis of South Asian Nuclear Deterrence: Pakistan’s Perspective,
(Oxford: Oxford University Press), 2009, p. 215.
58 All ballistic missiles described in this paragraph are road-mobile. Unless otherwise noted, ranges are from National
Air and Space Intelligence Center, Ballistic and Cruise Missile Threat, 2009.
59 A May 2010 Pakistani press release gave the range as 290 kilometers. (Press Release No 186/2010: “Prime Minister
Syed Yousaf Raza Gillani Addressing the Occasion After Successful Training Launches of a Short Range Ballistic
Missile Hatf III (GHAZNAVI) and a Medium Range Ballistic Missile Hatf IV (SHAHEEN 1) on Saturday,” Inter
Services Public Relations
, May 8, 2010).
60 Dr. Samar Mubarakmand, Chairman of Pakistan’s National Engineering and Scientific Commission, gave the
missile’s range as 700 kilometers during a 2004 television interview (“Capital Talk Special,” GEO-TV, May 3, 2004).
A January 2008 Pakistani press release also gave the range as 700 kilometers (Inter-Services Public Relations, January
25, 2008). However, a May 2010 Pakistani press release gave the range as 650 kilometers (Inter Services Public
Relations, May 8, 2010).
61 A February 2008 Pakistani press release also gives the range as 1,300 kilometers. (Inter-Services Public Relations,
No 35/2008-ISPR, February 1, 2008).
62 See also, Nuclear Notebook, 2009.; “Worldwide Ballistic Missile Inventories,” Arms Control Today Fact Sheet,
http://www.armscontrol.org/factsheets/missiles.asp; and Mahmud Ali Durrani, “Pakistan’s Strategic Thinking and the
Role of Nuclear Weapons,” Cooperative Monitoring Center Occasional Paper 37, July 2004.
(continued...)
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on the missile. A 2009 National Air and Space Intelligence Center (NASIC) report appears to
support this conclusion, stating that the missile “probably will soon be deployed.” Islamabad
continues to carry out ballistic missile tests, but notifies India in advance in accordance with an
October 2005 bilateral missile pre-notification pact.63 Maples also indicated that Pakistan is
developing nuclear-capable cruise missiles; the Babur (ground-launched) and the Ra’ad (air-
launched), both of which will have estimated ranges of 320 kilometers, according to the NASIC
report.64 In an April 29, 2011, announcement of a successful flight test of the Ra’ad, the Pakistani
government gave the missile’s range as 350 kilometers.65
Nuclear Doctrine
Pakistan’s strategic doctrine is undeclared, and will probably remain so, but prominent officials
and analysts have offered insights concerning its basic tenets.66 Describing the guiding principle
as minimum credible nuclear deterrence,67 high-level officials’ statements point to four policy
objectives for Islamabad’s nuclear weapons: deter all forms of external aggression; deter through
a combination of conventional and strategic forces; deter counterforce strategies by securing
strategic assets and threatening nuclear retaliation; and stabilize strategic deterrence in South
Asia.68 Pakistani officials have also indicated that this nuclear posture is designed to preserve
territorial integrity against Indian attack, prevent military escalation, and counter its main rival’s
conventional superiority.69
Pakistan has pledged no-first-use against non-nuclear-weapon states, but has not ruled out first-
use against a nuclear-armed aggressor, such as India.70 Some analysts say this ambiguity serves to

(...continued)
http://www.cmc.sandia.gov/cmc-papers/sand2004-3375p.pdf. Mubarakmand gave the missile’s range as 2,500
kilometers in the 2004 interview. An April 2008 Pakistani press release gave the range as 2,000 kilometers (Inter-
Services Public Relations “Review of 61st Formation Commanders Conference being presided by the Chief of Army
Staff, General Ashfaq Parvez Kayani at General Headquarters on Monday,” No 27/2008-ISPR, April 21, 2008).
63“Agreement Between the Republic of India and the Islamic Republic of Pakistan on Pre-Notification of Flight Testing
of Ballistic Missiles.” Full text on the Henry L. Stimson Center website: http://www.stimson.org/?SN=
SA20060207949.
64 National Air and Space Intelligence Center, 2009.
65 “Pakistan: New Cruise Missile Capable of Carrying Nuclear Warheads,” Associated Press of Pakistan, April 29,
2011.
66 Peter Lavoy, “Pakistan’s Nuclear Posture: Security and Survivability,” Paper presented to the Conference on
Pakistan’s Nuclear Future, Nonproliferation Education Center, Washington, DC, April 28, 2006: http://www.npec-
web.org/Frameset.asp?PageType=Single&PDFFile=20070121-Lavoy-PakistanNuclearPosture&PDFFolder=Essays.
67 A January 13, 2010, statement describing a National Command Authority meeting refers to Pakistan’s “policy of
credible minimum deterrence.”
68 Durrani, 2004.
69 For an in-depth discussion of minimum deterrence, see Naeem Salik, “Minimum Deterrence and India Pakistan
Nuclear Dialogue: Case Study on Pakistan,” Landau Network Centro Volta South Asia Security Project Case Study,
January 2006. http://www.centrovolta.it/landau/
South%20Asia%20Security%20Program_file%5CDocumenti%5CCase%20Studies%5CSalik%20-
%20S.A.%20Case%20Study%202006.pdf.
70 Ibid. It is worth noting that President Zardari stated in late 2008 that Pakistan would not be the first to use nuclear
weapons against India. See James Lamont and Farhan Bokhari, “Pakistan In Trade And Arms Offer To India,”
Financial Times, November 23, 2008; “Pakistan Against Use Of Nuclear Weapons: Zardari,” Associated Press of
Pakistan
, November 22, 2008; “Interview with President Asif Ali Zardari,” CNN Larry King Live, December 2, 2008.
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maintain deterrence against India’s conventional superiority; the Foreign Ministry spokesperson
stated May 21, 2009, that “there are acquisitions of sophisticated weaponry by our neighbour
which will disturb the conventional balance between our two countries and hence, lower the
nuclear threshold.” Other analysts argue that keeping the first-use option against New Delhi
allows Islamabad to conduct sub-conventional operations, such as support for low intensity
conflict or proxy war in Kashmir, while effectively deterring India at the strategic level.71
Pakistan has reportedly addressed issues of survivability through pursuing a second strike
capability, possibly building hard and deeply buried storage and launch facilities, deploying road-
mobile missiles, deploying air defenses around strategic sites, and utilizing concealment
measures.72
Command and Control
Pakistan’s command and control over its nuclear weapons is compartmentalized and includes
strict operational security. The government’s command and control system is based on “C4I2SR”
(command, control, communication, computers, intelligence, information, surveillance and
reconnaissance). Islamabad’s Strategic Command Organization has a three-tiered structure,
consisting of the National Command Authority (NCA), the Strategic Plans Division (SPD), and
the Strategic Forces Commands.
The NCA, established in 2000, supervises the functions and administration of all of Pakistan’s
organizations involved in nuclear weapons research, development, and employment, as well as
the military services that operate the strategic forces.73 The prime minister, as head of
government, is chairperson of the NCA.74 The NCA also includes the chair of the joint chiefs of
staff, the ministers of defense, interior, and finance, the director general of the SPD, and the
commanders of the Army, Air Force, and Navy. The final authority to launch a nuclear strike
requires consensus within the NCA; the chairperson must cast the final vote. The NCA is
comprised of two committees, the Employment Control Committee (ECC) and the Development
Control Committee (DCC), each of which includes a mix of civilian and military officials. The
ECC’s functions include establishing a command and control system over the use of nuclear
weapons. The DCC “exercises technical, financial and administrative control over all strategic

71 Kanti Bajpai, “No First Use in the India-Pakistan Context,” Pugwash Workshop No. 279, November 2002.
http://www.pugwash.org/reports/nw/bajpai.htm.
72 Lavoy, 2006.
73 December 2007 Ordinance to Provide for the Constitution and Establishment of National Command Authority.
74 When the NCA was established in 2000, the government’s announcement designated the Head of Government, or
Prime Minister, as Chairperson. At that time, General Musharraf, as Chief Executive, became Chairperson and stayed
in that position after becoming President in 2002. He appointed the Prime Minister as Vice Chairman. However,
President Zardari returned the NCA to its original structure when, in a November 2009 re-promulgation of the 2007
NCA Ordinance, he specified that the Prime Minister would be Chairperson, removing himself from that position (this
re-promulgation also abolished the position of Vice Chairman). Zardari may have done this in reaction to Parliamentary
pressure, and perhaps to boost his waning political support. According to Brigadier General (Ret.) Naeem Salik, the
change in Chairmanship may have only a symbolic impact on nuclear policy-making, since no changes were made to
the Strategic Plans Division itself. The Pakistani Parliament is now considering a bill, the National Command Bill of
2009, which includes these provisions, and could add reporting requirements on the safety and security of Pakistan’s
nuclear assets. A July 2009 Supreme Court decision required that the Ordinances from the Musharraf era be made law.
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organisations, including national laboratories and research and development organisations
associated with the development and modernisation of nuclear weapons.”75
The SPD is headed by a director general from the Army and acts as the secretariat for the NCA.
The SPD’s functions include formulating Islamabad’s nuclear policy, strategy, and doctrine;
developing the nuclear chain of command; and formulating operational plans at the service level
for the movement, deployment, and use of nuclear weapons. The Army, Air Force, and Navy each
have their own strategic force command, but operational planning and control remains with the
NCA. The SPD coordinates operational plans with the strategic forces commands. According to
current and former Pakistani officials, Islamabad employs a system which requires that at least
two, and perhaps three, people authenticate launch codes for nuclear weapons.76
On December 13, 2007, then-President Musharraf formalized these authorities and structure in
the “National Command Authority Ordinance, 2007.”77 The NCA was established by
administrative order, but now has a legal basis. Analysts point out that the timing of this
ordinance was meant to help the command and control system weather political transitions and
potentially preserve the military’s strong control over the system. The ordinance also addresses
the problems of the proliferation of nuclear expertise and personnel reliability. It outlines
punishable offenses related to breach of confidentiality or leakage of “secured information,” gives
the SPD authority to investigate suspicious conduct, states that punishment for these offenses can
be up to 25 years imprisonment, and applies to both serving and retired personnel, including
military personnel, notwithstanding any other laws. As a result, Pakistani authorities say that the
ordinance should strengthen their control over strategic organizations and their personnel.
Security Concerns
According to a 2001 Department of Defense report, Islamabad’s nuclear weapons “are probably
stored in component form,”78 which suggests that the nuclear warheads are stored separately from
delivery vehicles. According to some reports, the fissile cores of the weapons are separated from
the non-nuclear explosives.79 But whether this is actually the case is unclear; one report states that

75 Nuclear Black Markets: Pakistan, A.Q. Khan and the Rise of Proliferation Networks, (London: The International
Institute for Strategic Studies), 2007, p. 111; Pakistan Announcement of Nuclear-Weapons Command-and-Control
Mechanism, Associated Press of Pakistan, February 3, 2000. Nuclear Black Markets, pp. 110-111, has organization
charts of the NCA and SPD.
76 See P. Cotta-Ramusino and M. Martellini, “Nuclear Safety, Nuclear Stability And Nuclear Strategy In Pakistan: A
Concise Report Of A Visit By Landau Network - Centro Volta,” January 14, 2002. Available at
http://www.pugwash.org/september11/pakistan-nuclear.htm; Kenneth N. Luongo and Brig. Gen. (Ret.) Naeem Salik,
“Building Confidence in Pakistan’s Nuclear Security,” Arms Control Today, December 2007; Robin Walker,
“Pakistan’s Evolution as a Nuclear Weapons State: Lt. Gen. Khalid Kidwai’s CCC Address, Strategic Insights,
November 1, 2006.
77 “President Promulgated National Command Authority Ordinance,” Associated Press of Pakistan, December 13,
2007.
78 Proliferation: Threat and Response, p. 27.
79 Joby Warrick, “Pakistan Nuclear Security Questioned; Lack of Knowledge About Arsenal May Limit U.S. Options,”
Washington Post, November 11, 2007; Peter Wonacott, “Inside Pakistan’s Drive To Guard Its A-Bombs,” Wall Street
Journal, November 29, 2007; David E. Sanger, “Trust Us: So, What About Those Nukes?,” New York Times,
November 11, 2007; Nuclear Black Markets, 2007, p.33; Cotta-Ramusino and Martellini, 2002. See also, George
Perkovich of the Carnegie Endowment for International Peace quoted in Nigel Hawkes, “Pakistan Could Lose Control
of its Arsenal,” The Times (London), September 20, 2001.
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the warheads and delivery vehicles are probably stored separately in facilities close to one
another, but says nothing about the fissile cores.80 And, according to an account of a 2008 experts’
group visit to Pakistan, Lt. Gen. Khalid Kidwai, the head of the SPD, suggested that the nuclear
warheads (containing the fissile cores) may be mated with their delivery vehicles.81 According to
Kidwai, the report says, the SPD’s official position is that the weapons “will be ready when
required, at the shortest notice; [but] the Pakistani doctrine is not endorsing a US-USSR model
with weapons on hair trigger alert.” The 2001 Defense Department report says that Pakistan can
probably assemble its weapons fairly quickly.82
It warrants mention that, although separate storage may provide a layer of protection against
accidental launch or prevent theft of an assembled weapon, it may be easier for unauthorized
people to remove a weapon’s fissile material core if it is not assembled. Dispersal of the assets
may also create more potential access points for acquisition and may increase the risk of
diversion.83
As the United States prepared to launch an attack on the Afghan Taliban after September 11,
2001, President Musharraf reportedly ordered that Pakistan’s nuclear arsenal be redeployed to “at
least six secret new locations.”84 This action came at a time of uncertainly about the future of the
region, including the direction of U.S.-Pakistan relations. Islamabad’s leadership was uncertain
whether the United States would decide to conduct military strikes against Pakistan’s nuclear
assets if the government did not assist the United States against the Taliban. Indeed, President
Musharraf cited protection of Pakistan’s nuclear and missile assets as one of the reasons for
Islamabad’s dramatic policy shift.85
These events, in combination with the 1999 Kargil crisis, the 2002 conflict with India at the Line
of Control, and revelations about the A.Q. Khan proliferation network, inspired a variety of
reforms to secure the nuclear complex. Risk of nuclear war in South Asia ran high in the 1999
Kargil crisis, when the Pakistani military is believed to have begun preparing nuclear-tipped
missiles.86 It should be noted that, even at the high alert levels of 2001 and 2002, there were no
reports of Pakistan mating the warheads with delivery systems.87
In the fall of 2007 and early 2008, some observers expressed concern about the security of the
country’s arsenal if political instability were to persist.88 Former Prime Minister Benazir Bhutto

80 Lavoy, “Islamabad’s Nuclear Posture: Its Premises and Implementation.” p. 141.
81 Maurizio Martellini, “Security and Safety Issues about the Nuclear Complex: Pakistan’s Standpoints. A Concise
Report of a Visit to Islamabad by Landau Network Centro Volta (LNCV) Mission Carried out on February 9-13 2008.”
82 Proliferation: Threat and Response, p. 28.
83 See Graham Allison, “What About the Nukes?” Newsweek Web, December 28, 2007. http://www.newsweek.com/id/
82259
84 Molly Moore and Kamran Khan, “Pakistan Moves Nuclear Weapons - Musharraf Says Arsenal Is Now Secure,”
Washington Post, November 11, 2001.
85 “Partial transcript of Pakistan President Musharraf’s televised speech asking the people of Pakistan to support his
course of action,” September 19, 2001. http://www.washingtonpost.com/wp-srv/nation/specials/attacked/transcripts/
pakistantext_091901.html.
86 Bruce Riedel, “American Diplomacy and the 1999 Kargil Summit at Blair House,” Center for the Advanced Study of
India, Policy Paper Series, 2002. http://www.ccc.nps.navy.mil/research/kargil/reidel.pdf.
87 Lavoy, 2006.
88 “Opinions Mixed on Pakistani Nuclear Security,” Global Security Newswire, November 6, 2007. http://www.nti.org/
d_newswire/issues/recent_stories.asp?category=nuclear#6783E660.
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said in a November 5, 2007, interview that, although then-President Musharraf claimed to be in
firm control of the nuclear arsenal, she feared this control could weaken due to instability in the
country.89 Similarly, Michael Krepon of the Henry L. Stimson Center has argued that “a
prolonged period of turbulence and infighting among the country’s President, Prime Minister, and
Army Chief” could jeopardize the army’s unity of command, which “is essential for nuclear
security.”90 During that time, U.S. military officials also expressed concern about the security of
Pakistan’s nuclear weapons.91 Then-IAEA Director General Mohamed ElBaradei also has
expressed fears that a radical regime could take power in Pakistan, and thereby acquire nuclear
weapons.92 Experts also worry that while nuclear weapons are currently under firm control, with
warheads disassembled, technology could be sold off by insiders during a worsened crisis.93
However, U.S. intelligence officials have expressed greater confidence regarding the security of
Islamabad’s nuclear weapons. Deputy Secretary of State John D. Negroponte in testimony to
Congress on November 7, 2007, said he believed that there is “plenty of succession planning
that’s going on in the Pakistani military” and that Pakistan’s nuclear weapons are under “effective
technical control.”94 Similarly, Donald Kerr, Principal Deputy Director of National Intelligence,
told a Washington audience May 29, 2008, that the Pakistani military’s control of the nuclear
weapons is “a good thing because that’s an institution in Pakistan that has, in fact, withstood
many of the political changes over the years.” More recently, former DIA Director Maples stated
March 10, 2009, that Islamabad “has taken important steps to safeguard its nuclear weapons,”
although he pointed out that “vulnerabilities exist.”
As noted, other U.S. officials have also conveyed confidence in the security of Islamabad’s
nuclear weapons. General Petraeus stated on May 10, 2009, that “[w]ith respect to the—the
nuclear weapons and—and sites that are controlled by Pakistan … we have confidence in their
security procedures and elements and believe that the security of those sites is adequate.”95
Admiral Mullen echoed this assessment during a May 14, 2009, hearing before the Senate Armed
Services Committee. More recently, Secretary of Defense Robert Gates stated in a January 21,
2010, interview that the United States is “very comfortable with the security of Pakistan’s nuclear
weapons.”96 Then-State Department spokesperson P.J. Crowley told reporters April 9, 2010, that
Pakistan “has demonstrated that it can secure its own nuclear weapons program.” Similarly,
Under Secretary of Defense Michele Flournoy stated during an April 29, 2010, hearing that “we
believe that Pakistan has a very solid command-and-control system for their nuclear weapons,”
adding that “they have made a great deal of investment in the security of their nuclear arsenal.”97

89 Also see comments by David Albright in the same interview (“Pakistan in Crisis: Interview with Benazir Bhutto,”
CNN, November 5, 2007).
90 “U.S.-Pakistan Strategic Relations,” Statement before the Committee on Senate Homeland Security and
Governmental Affairs Subcommittee on Federal Financial Management, Government Information, Federal Services,
and International Security June 12, 2008.
91 “Lieutenant General Carter Ham Holds a Defense Department Briefing,” CQ Transcripts, November 7, 2007.
92 “Al Baradei to Al Hayat,” Dar Al Hayat, English Edition on-line, January 10, 2008, http://english.daralhayat.com/
Spec/01-2008/Article-20080110-639032eb-c0a8-10ed-01ae-81ab2ea588db/story.html.
93 Also see comments by David Albright in “Pakistan in Crisis,” 2007.
94 House Foreign Affairs Committee Hearing on Democracy, Authoritarianism and Terrorism in Contemporary
Pakistan, November 7, 2007.
95 Interview with General David H. Petraeus, FOX News Sunday, May 10, 2009. http://www.foxnews.com/story/
0,2933,519696,00.html.
96 Secretary of Defense Robert Gates, “Express TV Interview,” January 21, 2010.
97 “Security and Stability in Pakistan: Developments in U.S. Policy And Funding,” Hearing of the House Armed
(continued...)
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As noted, this confidence has continued into 2011. James Clapper, Director of National
Intelligence, told the House Intelligence Committee February 10 that “our assessment is that the
nuclear weapons in Pakistan are secure.” General Petraeus told the Senate Armed Services
Committee March 15 that “[t]here is quite considerable security for the Pakistani nuclear
weapons.”
U.S. knowledge of Pakistan’s arsenal, however, remains limited, according to U.S. officials. For
example, Mullen stated that “we’re limited in what we actually know” about Islamabad’s nuclear
arsenal. Leon Panetta, Director of the Central Intelligence Agency, similarly acknowledged in a
May 18, 2010, speech that the United States does not possess the intelligence to locate all of
Pakistan’s nuclear weapons-related sites.
Other governments have also voiced opinions regarding the security of Pakistan’s nuclear arsenal.
For example, Indian National Security Adviser M. K. Narayanan said that the arsenal is safe and
has adequate checks and balances.98 Similarly, then-Secretary of State for Foreign and
Commonwealth Affairs David Miliband told the Charlie Rose Show December 15, 2008, that
Islamabad’s nuclear weapons “are under pretty close lock and key.” Furthermore, according to
Director of the French General Directorate of External Security Erard Corbin de Mangoux,
Pakistan’s military and civilian leaders have a “sense of responsibility” to maintain control over
the country’s nuclear weapons; these leaders “know that the international status to which they
aspire depends directly on their ability to exercise complete control over such an instrument of
power,” he argued in an interview published in spring 2010.99
Other officials, however, have sounded somewhat less optimistic. For example, Russian Deputy
Prime Minister Sergei Ivanov said in a March 24, 2009, television interview that Moscow is
“very much concerned” about the security of Pakistan’s arsenal.100 And Indian officials expressed
concerns about the security of Pakistan’s nuclear arsenal following a May 2011 insurgent attack
on a military installation in Karachi.101
Pakistani officials have consistently expressed confidence in the security of the country’s nuclear
arsenal.102 Then-President Musharraf stated in November 2007 that Pakistan’s nuclear weapons
are under “total custodial controls.”103 More recently, President Asif Ali Zardari told CNN
December 2, 2008, that the country’s nuclear command and control system “is working well.”
Additionally, a Pakistani Foreign Ministry spokesperson stated May 21, 2009, that “there is
simply no question of our strategic assets falling into the wrong hands. We have full confidence in
our procedures, mechanisms and command and control systems.” Pakistani Prime Minister

(...continued)
Services Committee, April 29, 2010.
98 “Pak Nukes Safely Guarded, Says Narayanan,” The Press Trust of India, December 16, 2007.
99 Isabelle Lasserre, “Intelligence and the New Threats,” Politique Internationale, January 1-March 31, 2010.
100 Lyubov Pronina and Ellen Pinchuk, “Russia ‘Concerned’ About Security of Pakistan’s Nuclear Arsenal,”
Bloomberg, March 25, 2009.
101 “Safety of Pakistan’s Nukes a Global Concern: India,” Indo-Asian News Service, May 25, 2011.
102 Air Commodore Khalid Banuri, Director of Arms Control and Disarmament Affairs in the SPD, stated in a 2008
interview that Islamabad has “consistently augmented” its nuclear weapons security since 1998 (Ahmed Quraishi,
“Interview: Air Commodore Khalid Banuri – ‘Don't Mess With Pakistan’,” January 17, 2008),
http://www.globalpolitician.com/24013-pakistan.
103 “Pakistan Nukes Under Control: Musharraf,” Agence France Presse, November 13, 2007.
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Yousaf Raza Gilani stated May 8, 2010, that Islamabad has “laid to rest” concerns about its
nuclear arsenal’s security.104
The May 2011 U.S. strike that killed Al Qaeda leader Osama bin Laden generated a public
discussion in Pakistan as to whether a country such as India or the United States could
successfully attack and destroy Pakistan’s nuclear weapons.105 Responding to these concerns,
Prime Minster Gilani stated My 25, 2011, that the country’s “strategic assets are well protected
and our capability to defend our sovereignty, territorial integrity and liberties of our people, is
very much in place.”106
In addition to the above scenarios, the security of Pakistan’s nuclear weapons could also be
jeopardized by another conflict between India and Pakistan, Michael Krepon argued, explaining
that an “escalating war with nuclear forces in the field would increase the probability of
accidents, miscalculations, and the use of nuclear weapons.” This is because
[w]hen tensions rise precipitously with India, the readiness level of Pakistan’s nuclear
deterrent also rises. Because the geographical coordinates of Pakistan’s main nuclear weapon
storage sites, missile, and air bases can be readily identified from satellites—and therefore
targeted by opposing forces—the dictates of deterrence mandate some movement of
launchers and weapons from fixed locations during crises. Nuclear weapons on the move are
inherently less secure than nuclear weapons at heavily-guarded storage sites. Weapons and
launchers in motion are also more susceptible to “insider” threats and accidents.107
Such a war, Krepon added, would also place stress on the army’s unity of command. Krepon has
also pointed out that Islamabad faces a dilemma, because less-dispersed nuclear weapons may be
more vulnerable to a disarming military strike from India.108
U.S. Assistance and Pakistani Nuclear Security
U.S. plans to secure Pakistani nuclear weapons in case of a loss of control by the Pakistani
government were famously addressed during former Secretary of State Condoleezza Rice’s
confirmation hearing in January 2005. In response to a question from Senator John Kerry asking
what would happen to Pakistan’s nuclear weapons in the event of a radical Islamic coup in
Islamabad, Secretary Rice answered, “[w]e have noted this problem, and we are prepared to try to
deal with it.”109 On November 12, 2007, responding to press reports about this contingency, a
Pakistan Foreign Office spokesperson said, “Pakistan possesses adequate retaliatory capacity to

104 “Pakistan conducts successful launches Hatf III (Ghaznavi) and Hatf IV (Shaheen 1),” Pakistan Official News, May
8, 2010.
105 Jane Perlez, “Pakistan Army Under Scrutiny After U.S. Raid,” New York Times, May 5, 2011; Zahid Hussain,
Matthew Rosenberg and Jeremy Page, “After Raid, Confused Response,” The Wall Street Journal, May 9, 2011; Toby
Dalton and George Perkovich, “Beware Decline in Pakistani Relations,” Politico, May 16, 2011.
106 Press Information Department, “Prime Minister Gilani’s Opening Statement at the Defence Committee of the
Cabinet,” Pakistan Official News, May 25, 2011.
107 Krepon, June 12, 2008.
108 Michael Krepon, “Complexities Of Nuclear Risk Reduction In South Asia,” The Hindu, May 29, 2009.
109 “The Nomination of Dr. Condoleezza Rice to be Secretary of State,” Hearings before the Senate Foreign Relations
Committee, January 18 and 19, 2005. The concept of a contingency plan to take over Pakistan’s nuclear assets was first
written about by Seymour Hersh, “Watching the Warheads,” The New Yorker, November 5, 2001.
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defend its strategic assets and sovereignty,” emphasizing that Islamabad’s nuclear weapons have
been under “strong multi-layered, institutionalized decision-making, organizational,
administrative and command and control structures since 1998.”110 The issue of U.S. contingency
plans to take over Pakistani strategic assets was raised again in the press following Benazir
Bhutto’s assassination, and was met with similar assurances by Pakistan’s government.111
More recently, a Pakistan Foreign Office spokesperson, responding to a report detailing alleged
U.S.-Pakistani discussions regarding contingency plans for U.S. forces to help secure Islamabad’s
nuclear weapons, stated November 8, 2009, that Pakistan “does not require any foreign assistance
in this regard.” Pakistan will never “allow any country to have direct or indirect access to its
nuclear and strategic facilities,” the spokesperson said, adding that “no talks have ever taken
place on the issue of the security of Pakistan’s nuclear arsenal with US officials.”112 U.S.
Ambassador to Pakistan Anne Patterson stated the same day that the United States “has no
intention to seize Pakistani nuclear weapons or material.” Gates stated during the January 2010
television interview that the United States has “no intention or desire to take over any of
Pakistan’s nuclear weapons.”113
The United States reportedly offered nuclear security assistance to Pakistan soon after September
11, 2001.114 U.S. assistance to Islamabad, which must comply with nonproliferation guidelines,
has reportedly included the sharing of best practices and technical measures to prevent
unauthorized or accidental use of nuclear weapons, as well as contribute to physical security of
storage facilities and personnel reliability.115 Some press reports say that the United States
provided Pakistan with Permissive Action Links (PALs) in 2003, although former Pakistani
military officials have said Pakistan has developed PALs for its warheads without assistance.116
PALs require a code to be entered before a weapon can be detonated. As noted above, Islamabad
employs a system requiring that at least two, and perhaps three, people authenticate launch codes
for nuclear weapons.117 Security at nuclear sites in Islamabad is the responsibility of a 10,000-
member security force, commanded by a two-star general.
Former Deputy Secretary of State Richard Armitage confirmed in a November 2007 interview
that there has been U.S. assistance in this area, explaining that the United States was unlikely to

110 “Strategic Assets Are Safe, Says FO,” Dawn, November 12, 2007.
111 “Pentagon Readies Plan for Pakistan’s Nuclear Arsenal,” The Guardian, December 28, 2007. For a discussion of the
difficulties of such a scenario, see Shaun Gregory, “The Security of Nuclear Weapons in Pakistan,” Pakistan Security
Research Unit Brief Number 22, University of Bradford, November 18, 2007. Available at
http://spaces.brad.ac.uk:8080/download/attachments/748/Brief_22finalised.pdf
112 “Pakistan Foreign Office Rejects U.S. Media Report on Nuclear Arsenal,” Associated Press of Pakistan, November
9, 2009.
113 “Express TV Interview,” January 21, 2010.
114 Alex Wagner, “U.S. Offers Nuclear Security Assistance to Pakistan,” Arms Control Today, December 2001.
http://www.armscontrol.org/act/2001_12/paknucsecdec01.asp.
115 Joby Warrick, “U.S. Has Concerns Over Security of Pakistan’s Nuclear Weapons,” The Washington Post,
November 11, 2007; David Sanger and William Broad, “U.S. Secretly Aids Pakistan in Guarding Nuclear Arms,” The
New York Times
, November 17, 2007.
116 Kaushik Kapisthalam, “Guarding Pakistan’s Nuclear Estate,” Asia Times, April 6, 2005. http://www.atimes.com/
atimes/South_Asia/GD06Df04.html; Robert Windrem, “Pakistan’s Nuclear History Worries Insiders,” NBC News,
November 6, 2007. http://www.msnbc.msn.com/id/21660667/. General Kidwai has stated that “if a country can make
complex nuclear weapons and ballistic cruise missiles grant it that PALs is a far simpler technology.” (Cited in
Martellini, 2008).
117 Mubarakmand provided some details about Pakistan’s use of such codes in the 2004 interview.
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intervene militarily in a crisis in Pakistan because “we have spent considerable time with the
Pakistani military, talking with them and working with them on the security of their nuclear
weapons. I think most observers would say that they are fairly secure. They have pretty
sophisticated mechanisms to guard the security of those.”118 Rolf Mowatt-Larssen, former
Director of the Office of Intelligence and Counterintelligence at the U.S. Department of Energy,
pointed out in May 2009 that “there’s not a lot of transparency into” how Islamabad spends the
U.S. funds, but he nevertheless characterized them as “money well spent.”119 A Pakistani official
said in November 2009 that Pakistan reserves the right to “pick and choose” the nuclear security
measures it will undertake, adding that Islamabad will only accept such measures that are “non-
intrusive.”120
The extent to which Pakistan has shared information about its nuclear arsenal with the United
States is unclear. Although, as noted, former President Musharraf has acknowledged Islamabad’s
sharing of some information, General Tariq Majid, chair of Pakistan’s Joint Chiefs of Staff
Committee, stated November 9, 2009, that “there is absolutely no question of sharing or allowing
any foreign individual, entity or a state, any access to sensitive information about our nuclear
assets.”121 Air Commodore Khalid Banuri, Director of Arms Control and Disarmament Affairs in
the SPD, indicated in a 2008 interview that Islamabad accepts U.S. “education and awareness, but
in a completely non-intrusive way,” adding that Pakistan has “some rudimentary equipment and
some training” from the United States. Banuri described giving U.S. officials access to Pakistan’s
nuclear weapons facilities as a “red line” that Islamabad will not cross.122
The U.S. government has also reportedly offered assistance to secure or destroy radioactive
materials that could be used to make a radioactive dispersal device, and to ship highly enriched
uranium used in the Pakistani civilian nuclear sector out of the country.123 Pakistan’s response to
these proposals is unclear, and downturns in the bilateral relationship overall may have
complicated efforts to make progress in this area.
It is worth noting that, according to some observers, spent fuel from Pakistan’s Karachi and
Chasma nuclear power plants could be vulnerable to theft or attack.124 However, Pakistani
officials have expressed confidence in the security of its facilities125 and have said that Islamabad
has no plans to transport spent fuel from either reactor. Moreover, the Pakistan Nuclear
Regulatory Authority (PNRA) has a Nuclear Security Action Plan, which includes a description

118 “A Conversation With Former Deputy Secretary of State Richard Armitage,” PBS: The Charlie Rose Show,
November 6, 2007.
119 Ben Arnoldy, “Could Taliban Get Keys to Pakistan’s A-Bomb? Experts See the Islamic Fighters as Less of a Risk
than Radical Insiders Gaining Access to Nuclear Materials,” The Christian Science Monitor, May 15, 2009.
120 Mariana Baabar, “Pak N-safety Plan,” The News International, November 10, 2009.
121 Ibid.
122 Quraishi, January 17, 2008.
123 Bryan Bender, “Pakistan, US in Talks on Nuclear Security,” The Boston Globe, May 5, 2009.
124 Abdul Mannan, “Preventing Nuclear Terrorism in Pakistan: Sabotage of a Spent Fuel Cask or a Commercial
Irradiation Source in Transport,” in Pakistan’s Nuclear Future, 2008; Martellini, 2008. More details about these
facilities may be found in the section, “Pakistan’s Civil Nuclear Program.” Some analysts argue that spent nuclear fuel
is more vulnerable when being transported.
125 Martellini, 2008.
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of regulations for handling spent nuclear fuel. The PNRA states that Pakistan follows IAEA
physical protection standards.126
Proliferation
A fundamental aspect of nuclear security is ensuring that personnel with sensitive knowledge do
not proliferate that expertise, but this aspect of nuclear security in Pakistan was recognized only
in the past 10 years and resulted in significant reforms of its personnel security system. Many
observers continue to be concerned that other states or terrorist organizations could obtain
material or expertise related to nuclear weapons from elements in Pakistan.127 This view is only
encouraged by recent instability and governance problems.
The A. Q. Khan Network
Proliferation networks stemming from Pakistan have their roots in the effort to develop a
Pakistani nuclear bomb. Beginning in the 1970s, Pakistan used extensive clandestine procurement
networks to obtain technology for its own nuclear weapons program. Former Pakistani nuclear
scientist A. Q. Khan directed this procurement and subsequently used a similar network to supply
Libya, North Korea, and Iran with materials related to uranium enrichment for profit.128
The current status of Pakistan’s nuclear export network is unclear, although most official U.S.
reports indicate that, at the least, it has been damaged considerably. Then-Director of National
Intelligence John D. Negroponte implied that the network had been dismantled when he asserted
in a January 11, 2007, statement to the Senate Select Committee on Intelligence that “Pakistan
had been a major source of nuclear proliferation until the disruption of the A.Q. Khan
network.”129 When asked about the network’s current status during a July 25, 2007, Senate
Foreign Relations Committee hearing, then-Under Secretary for Political Affairs Nicholas Burns
replied that:

126 These standards are contained in IAEA document INFCIRC/225/Rev.4.
127 For more information on Pakistani proliferation, see CRS Report RL32745, Pakistan's Nuclear Proliferation
Activities and the Recommendations of the 9/11 Commission: U.S. Policy Constraints and Options
, by Richard P.
Cronin, K. Alan Kronstadt, and Sharon Squassoni. Also see CRS Report RL33498, Pakistan-U.S. Relations, by K.
Alan Kronstadt.
128 Libya obtained uranium enrichment technology and nuclear weapons designs that could support a nuclear weapons
program. North Korea currently has a plutonium-based nuclear weapons program and may also have a uranium-based
nuclear weapons program. Iran is suspected of pursuing both plutonium- and uranium-based nuclear weapons
programs. A 1979 State Department memorandum stated that Libya, Iraq, or Iran “might be prepared to provide
economic support” to Islamabad “in exchange for nuclear cooperation from Pakistan.” (Department of State Action
Memorandum, “PRC Paper on South Asia,” March 23, 1979, available at http://www.gwu.edu/~nsarchiv/nukevault/
ebb333/doc41.PDF). Additionally, a 1979 memorandum from the National Intelligence Officer for Nuclear
Proliferation stated that Pakistan “might already have been induced to share with identified foreigners some sensitive
nuclear equipment and to propose terms for possible future nuclear cooperation with Saudi Arabia, Libya, or Iraq.”
(“Monthly Warning Report – Nuclear Proliferation,” NFAC – 3871-79, July 24, 1979, available at
http://www.gwu.edu/~nsarchiv/nukevault/ebb333/doc32a.pdf).
129 Unclassified Statement for the Record Annual Threat Assessment, Senate Select Committee on Intelligence, January
11, 2007.
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I cannot assert that no part of that network exists, but it’s my understanding based on our
conversations with the Pakistanis that the network has been fundamentally dismantled. But
to say that there are no elements in Pakistan, I’m not sure I could say that.
Similarly, the London-based International Institute for Strategic Studies found in a May 2007
report that “at least some of Khan’s associates appear to have escaped law enforcement attention
and could ... resume their black-market business.”130
More recently, a January 12, 2009, State Department press release said that the network “is no
longer operating.” For its part, Pakistan’s Foreign Office stated February 7, 2009, that Pakistan
“has dismantled the nuclear black market network.” Asked during a July 20, 2009, interview
whether Pakistan was transferring “nuclear weapons” or related advice to North Korea, Secretary
of State Hillary Clinton replied that there is “no evidence” that Pakistan is doing so. Furthermore,
Acting Assistant Secretary of State Vann Van Diepen described the network as “basically defunct”
during a July 22, 2010, congressional hearing, adding that “we’re on the lookout for sort of the
next A.Q. Khan network, so to speak.”131 Similarly, State Department spokesperson P.J. Crowley
told reporters during an August 3, 2010, press briefing that the United States monitors the Khan
network “very closely for signs that others within his realm are still in business.”
Asked during the 2007 hearing about Pakistan’s cooperation in investigating the network, Burns
acknowledged that the United States has not had “personal, consistent access” to Khan, but added
that he did not “have all the details of everything we’ve done.” Similarly, the IAEA has not yet
been able to interview Khan directly, according to an agency official. However, sources report
that Islamabad has responded to written questions from the IAEA and has been cooperative with
the agency’s investigation of Iran’s nuclear program.132 Khan himself told Dawn News TV May
29, 2008, that he would not cooperate with U.S. or IAEA investigators. A Pakistani Foreign
Office spokesperson told reporters in May 2006 that the government considered the Khan
investigation “closed”—a position an Office spokesperson reiterated February 6, 2009. The State
Department announced January 12, 2009, that it was imposing sanctions on 13 individuals and
three companies for their involvement in the Khan network. The sanctions were imposed under
the Export-Import Bank Act, the Nuclear Proliferation Prevention Act, and Executive Orders
12938 and 13382.
Interactions with Al-Qaeda
According to reports, Al-Qaeda unsuccessfully sought nuclear weapons assistance from the Khan
network133 but did receive limited help from at least one other group in Pakistan. Scientists who
may have provided some help to al-Qaeda representatives were retired Pakistan Atomic Energy
Commission scientists, long-time rivals of A.Q. Khan, and Islamic fundamentalists—Sultan

130 Nuclear Black Markets, 2007, p. 159.
131 “Transshipment And Diversion: Are U.S. Trading Partners Doing Enough To Prevent The Spread Of Dangerous
Technologies?” Hearing of the Terrorism, Nonproliferation and Trade Subcommittee of the House Foreign Affairs
Committee
, July 22, 2010.
132 Personal communication, November 9, 2007.
133 Former Director of Central Intelligence George Tenet wrote in his memoirs that the United States “received
fragmentary information from an intelligence service” that in 1998 Osama bin Laden had “sent emissaries to establish
contact” with the Khan network. Tenet, George and Harlow, Bill, At the Center of the Storm: My Years at the CIA,
HarperCollins: New York, 2007. p. 261; David Albright, Peddling Peril: How the Secret Nuclear Trade Arms
America’s Enemies
, The Institute of Science and International Security, 2010.
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Bashiruddin Mahmood and Chaudiri Abdul Majeed.134 The assistance under the umbrella of the
UTN humanitarian organization was reportedly related to weapons of mass destruction, but
details are scarce on the extent of the transfers, and the events following the September 11, 2001,
attacks on the United States may have cut off this interaction.
Mahmood and Majeed met with Osama bin Laden and Ayman al-Zawahiri in August 2001 in
Afghanistan to discuss, among other topics, what would be needed to develop a nuclear weapons
infrastructure, details of nuclear bomb design, and how to construct radiological dispersal
devices. 135 Mahmood was a public figure well-known for his eccentric and extreme views about
science and Islam, and he was demoted in 1999 to a lower rank in part because of his radicalism.
Mahmood then sought early retirement and started the UTN organization. After the United States
briefed the Pakistani government about this activity at the highest levels in the fall of 2001, the
Pakistani authorities detained the UTN scientists for multiple rounds of questioning. Through
these interrogations and searches in Afghanistan, UTN’s work with al-Qaeda on biological
weapons and rudimentary nuclear weapons technology came to light.136 The Pakistani
government did not press criminal charges against Mahmood and Majeed, but put the scientists
under house arrest in 2002. This extreme case raised awareness of the “insider threat” and
subsequently led to changes in Pakistani personnel security policy, detailed below. Accounts raise
the possibility of other groups or individuals also providing al Qaeda with nuclear expertise, but
less information is publicly available.137
Pakistan’s Response to the Proliferation Threat
Then-Under Secretary Burns testified in July 2007 that the Bush administration has “told the
Pakistani government that it is its responsibility ... to make sure” that neither the Khan network
nor a “similar organization” resurfaces in the country. Since the revelations about the Khan
network, Pakistan appears to have increased its efforts to prevent nuclear proliferation. But
whether and to what extent these efforts have been successful is not yet clear. It is worth noting
that, because Khan conducted his proliferation activities as a government official, they do not
necessarily indicate a failure of Islamabad’s export controls.
Pakistani officials argue that Islamabad has taken a number of steps to prevent further
proliferation of nuclear-related technologies and materials.138 For example, Islamabad adopted in
September 2004 new national export controls legislation which includes a requirement that the
government issue control lists for “goods, technologies, material, and equipment which may
contribute to designing, development, stockpiling, [and] use” of nuclear weapons and related
delivery systems. According to a February 2008 presentation by Zafar Ali, Director of Pakistan’s
Strategic Export Controls Division (SECDIV),139 the lists, which were issued in October 2005

134 For a detailed discussion, see Albright, 2010.
135 Albright, ibid. According to a 2005 report by the Commission on the Intelligence Capabilities of the United States
Regarding Weapons of Mass Destruction, al-Qaeda “had established contact with Pakistani scientists who discussed
development of nuclear devices that would require hard-to-obtain materials like uranium to create a nuclear explosion.
http://www.wmd.gov/report/index.html.
136 Albright, ibid. Tenet, ibid.
137 Albright, ibid.
138 Details of Pakistan’s nuclear-related legislation can be found in the country’s reports to the UN 1540 Committee.
Both can be found at http://daccessdds.un.org/doc/UNDOC/GEN/N04/597/46/PDF/N0459746.pdf?OpenElement.
139 Presentation given to Partnership for Global Security Workshop, “Meeting the Nuclear Security Challenge in
(continued...)
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and are to be periodically updated, include items controlled by multilateral export control
regimes, such as the Nuclear Suppliers Group, the Australia Group, and the Missile Technology
Control Regime.140 The export controls legislation also includes a catch-all clause, which requires
exporters to notify the government if they are aware or suspect that goods or technology are
intended by the end-user for use in nuclear or biological weapons, or missiles capable of
delivering such weapons.141
The legislation includes several other important elements, such as end-use and end-user
certification requirements and new penalties for violators. Since its adoption, Pakistan has
established the SECDIV and an associated Oversight Board. The SECDIV is responsible for
formulating rules and regulations for implementing the legislation. The board is comprised of
officials from multiple agencies and is headed by Pakistan’s Foreign Secretary.
Islamabad says that it has also taken several other steps to improve its nuclear security. For
example, the government announced in June 2007 that it is “implementing a National Security
Action Plan with the [IAEA’s] assistance.” That same month, Pakistan also joined the U.S.- and
Russian-led Global Initiative to Combat Nuclear Terrorism. As noted above, the December 2007
National Command Authority Ordinance also includes measures to prevent the spread of nuclear-
related materials and expertise.
Pakistani officials participating in an April 2007 Partnership for Global Security workshop argued
that Islamabad has improved the reliability of its nuclear personnel by, for example, making
security clearance procedures more stringent. However, the officials also acknowledged that
Islamabad still needs to do more to control its nuclear expertise.142 Similarly, Admiral Mullen
stated May 14, 2009, that the country’s personnel reliability system must “continue to improve.”
Some reports about the early January 2011 shooting of Salmaan Taseer, the governor of Punjab
province, have raised questions about Pakistan’s ability to vet security personnel properly.143
The United States has also provided export control assistance to Pakistan. Burns described several
such efforts in his July 2007 testimony.144 And according to an October 2007 U.S. Government

(...continued)
Pakistan,” February 21-22, 2008. http://www.partnershipforglobalsecurity.org/documents/zafar_export.pdf.
140 The Nuclear Suppliers Group is a multilateral, voluntary group of nuclear supplier states which have agreed to
coordinate their exports of civilian nuclear technology and materials in order to prevent importers from using them to
produce nuclear weapons. The Australia Group is a voluntary, informal, export-control arrangement through which
participating countries coordinate their national export controls to limit the supply of chemicals and biological agents,
as well as related equipment, technologies, and knowledge, to countries and nonstate entities suspected of pursuing
chemical or biological weapons capabilities. The Missile Technology Control Regime is an informal, voluntary
arrangement in which participants agree to adhere to common export policy guidelines applied to an “annex” that lists
items related to the proliferation of ballistic and cruise missiles, rockets, and unmanned air vehicles capable of
delivering weapons of mass destruction.
141 The Chemical Weapons Convention Implementation Ordinance of 2000 regulates the import and export of
chemicals in accordance with the convention.
142 Building Confidence in Pakistan’s Nuclear Security: Workshop Synopsis. April 30, 2007.
143 Asif Shahzad, “Pakistani Governor Killed by own Bodyguard,” Associated Press, January 4, 2011; Salman Masood
and Carlotta Gall, “Crisis Grows in Pakistan with Killing of Governor; Government Shaken amid Fears Islamists have
Infiltrated Security Forces,” The International Herald Tribune, January 6, 2011; Asif Shahzad and Sebastian Abbot,
“Shadow over Pakistan Security Grows,” Associated Press, January 12, 2011.
144 Burns mentioned Pakistan’s participation in the Container Security Initiative and the Secure Freight Initiative.
Under these programs, “the United States and Pakistan worked together to install screening and radiation detection
equipment to scan U.S.-bound cargo.” He also stated that the Department of Energy “is working with Pakistan on
(continued...)
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Accountability Office report, Islamabad was during FY2003-FY2006 the second-largest recipient
of bilateral U.S. assistance designed to improve target countries’ export controls. Pakistan
received such assistance from the Departments of State, Energy, and Homeland Security.145
Under Secretary of State for Arms Control and International Security Ellen Tauscher told the
Senate Foreign Relations Committee that the Obama administration does not support
conditioning aid to Pakistan on permitting direct U.S. access to Khan, arguing, in part, that the
United States has “obtained a great deal of information about the Khan network without having
direct access to A.Q. Khan.”146
Pakistan’s Civil Nuclear Program
Pakistan also has a civil nuclear power program, with two reactors currently operating—the
Karachi Nuclear Power Plant, which went critical in 1971,147 and the Chasma Nuclear Power
Plant, which went critical in 2000.148 Prime Minister Gilani announced May 12, 2011, that a
second nuclear reactor at Chasma, constructed with Chinese assistance, had become
operational.149 Beijing has also apparently agreed to construct two additional power reactors at
Chasma, according to both Chinese and Pakistani officials.150 Pakistan Atomic Energy
Commission Chairman Ansar Parvez stated May 12, 2011, that that concrete has been poured for
one of these reactors and that ground breaking for the other reactor would take place the next
month. The first reactor is to come on line in 2016, with the next to follow 10 months later.151
Acting Assistant Secretary Van Diepen stated July 22, 2010, that such a sale would appear to be
inconsistent with current Nuclear Suppliers Group (NSG) guidelines. Additionally, Pakistan and
China are reportedly close to finalizing an agreement for Beijing to construct a third, larger,
reactor in Pakistan.152 As noted, the NSG changed its guidelines in 2008 to allow nuclear trade
with India. Secretary of State Clinton suggested July 20, 2010, that the United States does not

(...continued)
radiation source security and is in the process of finalizing an agreement to install radiation detection equipment at
Pakistani ports and border crossings.”
145 GAO Report, Nonproliferation: U.S. Efforts to Combat Nuclear Networks Need Better Data on Proliferation Risks
and Program Results,
October 31, 2007.
146 Question #54, Pre-Hearing Questions for the Record by Senator Richard Lugar Senate Foreign Relations
Committee, Nomination of Ellen M. Tauscher to be Under Secretary of State for Arms Control and International
Security. http://lugar.senate.gov/sfrc/pdf/TauscherQFR.pdf.
147 http://www.paec.gov.pk/kanupp/ma.htm.
148 http://www.paec.gov.pk/chasnupp1/milestones.htm.
149 Shafek E Koreshe, “Pakistan’s Third 330 MW Nuclear Power Plant Becomes Operational,” Associated Press of
Pakistan, May 12, 2011.
150 Ibid., Foreign Ministry Spokesman’s News Conference on September 21, 2010. http://www.mfa.gov.cn/eng/xwfw/
s2510/2511/t756092.htm.
151 Koreshe, 2011.
152 “Pak’s One-GW Nuke Plant Project Likely to be Finalised during Jiabao’s Visit,” Asian News International,
December 7, 2010. Christopher Bodeen, “China’s Wen to Visit India Amid Trade, Land Spats,” Associated Press,
December 12, 2010. Khurram Shahzad, “China, Pakistan Sign $20 Bln Deals: Minister,” Agence France Presse,
December 17, 2010.
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currently support a similar change for Pakistan.153 Assistant Secretary of State Robert Blake
reiterated Van Diepen and Clinton’s positions March 18, 2011.154
Pakistan is also operating two research reactors—Pakistan Research Reactor 1, which went
critical in 1965,155 and Pakistan Research Reactor 2, which went critical in 1989.156 Pakistan
Research Reactor 1, which was originally supplied by a U.S. firm, was converted from using
highly-enriched uranium (HEU) to low-enriched uranium fuel in 1992.157 A “small amount” of
the HEU fuel remains in Pakistan.158
Issues for Congress
Legislation introduced during the 111th Congress appeared designed to influence Islamabad’s
nuclear stability and policies regarding the Khan network. Section 2 of H.R. 1463, which was
introduced March 12, 2009, stated that U.S. military assistance could be provided to Pakistan
only if the President were to certify that Islamabad is both making A.Q. Khan available to the
United States for questioning and “providing adequate assurances to the United States
Government that it will monitor Khan’s movements and activities in such a manner as to prevent
his participation in any efforts to disseminate nuclear technology or know-how.” This section
would have allowed the President to waive restrictions on U.S. assistance imposed pursuant to the
proposed legislation if the President were to certify to Congress “that it is in the national interests
of the United States to do so.”
H.R. 2481, the United States-Pakistan Security and Stability Act, which was introduced May 19,
2009, would have required the President to “develop and transmit to the appropriate
congressional committees a comprehensive interagency strategy and implementation plan for
long-term security and stability in Pakistan.” The strategy was to include a “description of how
United States assistance” authorized by the bill would be “used to achieve the objectives of
United States policy toward Pakistan,” including enabling Islamabad to “maintain robust
command and control over its nuclear weapons technology.” The bill would have authorized
foreign assistance for Pakistan, including funds for improving the government’s counter-
insurgency capability.
In addition, legislation to authorize various forms of U.S. assistance to Pakistan contains
provisions related to Islamabad’s nuclear program. S. 1707, the Enhanced Partnership with
Pakistan Act of 2009, which became law (P.L. 111-73, 123 Stat. 2060) on October 15, 2009,
authorizes various forms of U.S. assistance to Pakistan, including strengthening democratic
institutions and law enforcement, as well as supporting economic development, education, human

153 “Remarks by Secretary of State Hillary Rodham Clinton at a Town Hall at the Pakistan National Council of the
Arts,” July 20, 2010.
154 Media Roundtable with Robert O. Blake, Jr., Assistant Secretary of State for South and Central Asian Affairs,
March 18, 2011.
155 Research Reactor Details - PARR-1. http://www.iaea.org/worldatom/rrdb/.
156 Research Reactor Details - PARR-2. http://www.iaea.org/worldatom/rrdb/.
157 I.H. Qureshi, “Recollections From The Early Days Of The PAEC,” The Nucleus, 42 (1-2), 2005, pp. 7-11. Research
Reactor Details - PARR-1.
158 Matthew Bunn, Securing the Bomb 2010: Securing All Nuclear Materials in Four Years, (Cambridge, MA., and
Washington, DC: Project on Managing the Atom, Harvard University, and Nuclear Threat Initiative), April 2010, p. 28.
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rights, and heath care. Section 203 (c) of S. 1707 requires the President to certify that Pakistan is
“continuing to cooperate with the United States in efforts to dismantle supplier networks relating
to the acquisition of nuclear weapons-related materials, such as providing relevant information
from or direct access to Pakistani nationals associated with such networks.” It also requires a
Semi-Annual Monitoring Report that is to include a detailed description of Pakistan’s nuclear
non-proliferation efforts and an assessment of whether assistance has
directly or indirectly aided the expansion of Pakistan’s nuclear weapons program, whether by
the diversion of United States assistance or the reallocation of Pakistan’s financial resources
that would otherwise be spent for programs and activities unrelated to its nuclear weapons
program.
In response to concerns expressed in Pakistan over the intent of the bill, a “Joint Explanatory
Statement” was submitted for the Congressional Record by Senate Foreign Relations Committee
Chairman John Kerry and then-House Foreign Affairs Committee Chairman Howard Berman.
The statement emphasizes that “the legislation does not seek in any way to compromise
Pakistan’s sovereignty, impinge on Pakistan’s national security interests, or micromanage any
aspect of Pakistani military or civilian operations.” Regarding reporting requirements on nuclear
nonproliferation cooperation, the statement says:
The many requirements of this report are intended as a way for Congress to assess how
effectively U.S. funds are being spent, shortfalls in U.S. resources that hinder the use of such
funds, and steps the Government of Pakistan has taken to advance our mutual interests in
countering extremism and nuclear proliferation and strengthening democratic institutions.
There is no intent to, and nothing in this Act in any way suggests that there should be, any
U.S. role in micromanaging internal Pakistani affairs, including the promotion of Pakistani
military officers or the internal operations of the Pakistani military.159
S. 1707 represented a compromise between two bills, H.R. 1886, the Pakistan Enduring
Assistance and Cooperation Enhancement Act of 2009, and S. 962, the Enhanced Partnership
with Pakistan Act of 2009. H.R. 1886 would have placed conditions on U.S. security assistance to
Pakistan; it stated that no U.S. military assistance could be provided to Pakistan if the President
had not made a series of determinations, one of which is that the government “is continuing to
cooperate with the United States in efforts to dismantle supplier networks relating to the
acquisition of nuclear weapons related materials, including, as necessary, providing access to
Pakistani nationals associated with such networks.” The section included a national security
waiver. The bill also required a report to Congress which would have included a “description of
Pakistan’s efforts to prevent proliferation of nuclear-related material and expertise” and an
“assessment of whether assistance provided to Pakistan pursuant to this Act has directly or
indirectly aided the expansion of Pakistan’s nuclear weapons program.” The committee report
underlined ongoing concerns about getting full information about the activities of the Khan
network and development of Pakistan’s own nuclear arsenal:
Pakistan’s history of nuclear development and Dr. Abdul Qadeer Khan’s establishment of a
nuclear proliferation network remain a source for concern to many in the United States,
particularly since the Committee understands that representatives of the United States have
not interviewed certain individuals involved in the network. The Committee believes the
United States should continue to engage the Government of Pakistan on the network, and

159 See Congressional Record S10429-S10431.
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Pakistan’s Nuclear Weapons: Proliferation and Security Issues

should, as necessary, obtain direct access to the individuals covered by this subsection,
including Dr. Khan. The Committee also maintains strong concerns regarding recent reports
of Pakistan expansion of its nuclear arsenal. Given the expanding threat of Pakistan’s
domestic insurgency, the Government of Pakistan’s further development of nuclear materials
appears inconsistent with its immediate security threats and is unhelpful in the context of
efforts to strengthen U.S.-Pakistani relations.
S. 962 would have provided aid to Pakistan but did not include conditions regarding the nuclear
nonproliferation or nuclear weapons activities. The Senate report (S.Rept. 111-33), however,
stated that “[a]ny use of funds contained in this legislation for the purpose of augmenting
Pakistan’s nuclear weapons program would be directly contrary to Congressional intent.”
It is worth noting that Pakistani officials have expressed interest in concluding a nuclear
cooperation agreement with the United States, which would require congressional approval.
Prime Minister Gilani told a visiting congressional delegation in June 2011 that such cooperation
“would help build a positive image of the US in the country.”160

Author Contact Information

Paul K. Kerr
Mary Beth Nikitin
Analyst in Nonproliferation
Specialist in Nonproliferation
pkerr@crs.loc.gov, 7-8693
mnikitin@crs.loc.gov, 7-7745



160 Press Information Department, “United States Congressional Delegation calls on Prime Minister Gilani,” Pakistan
Official News, June 7, 2011.
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