The Advanced Spectroscopic Portal Program:
Background and Issues for Congress

Dana A. Shea
Specialist in Science and Technology Policy
John D. Moteff
Specialist in Science and Technology Policy
Daniel Morgan
Analyst in Science and Technology Policy
March 25, 2009
Congressional Research Service
7-5700
www.crs.gov
RL34750
CRS Report for Congress
P
repared for Members and Committees of Congress

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

Summary
The Domestic Nuclear Detection Office (DNDO) of the Department of Homeland Security
(DHS) is charged with developing and procuring equipment to prevent a terrorist nuclear or
radiological attack in the United States. At the forefront of DNDO’s efforts are technologies
currently deployed and under development whose purpose is to detect smuggled nuclear and
radiological materials. These technologies include existing radiation portal monitors and next-
generation replacements known as advanced spectroscopic portals (ASPs).
Radiation portal monitors are used to detect radiation emitted from conveyances, such as trucks,
that are entering the United States. Combined with additional equipment to identify the source of
the emitted radiation, they provide for a detection and identification capability to locate smuggled
nuclear and radiological materials. The ASPs currently under testing integrate these detection and
identification steps into a single process. By doing so, DHS aims to reduce the impact of radiation
screening on commerce while increasing its ability to detect illicit nuclear material.
The speed of ASP development and deployment, the readiness of ASP technology, and the
potential benefits of the ASP program relative to its cost have all been topics of extensive
congressional interest. Congress has held oversight hearings regarding the ASP program.
Additionally, since FY2007, Congress has each year required that the Secretary of Homeland
Security certify that ASPs will result in a “significant increase in operational effectiveness”
before DHS can obligate appropriated funds for full-scale ASP procurement. Secretarial
certification is still pending.
Laboratory and field tests of the ASPs, cost-benefit analyses, and other activities are under way to
inform the Secretary’s certification decision. Among the issues Congress faces are whether to
further define the expected performance of the ASP systems through additional legislation; how
to assess whether the ASP systems are technologically ready to be deployed; how to weigh the
potential economic and security benefits of ASP deployment against its financial cost; and
whether the certification process developed by DHS to establish a “significant increase in
operational effectiveness” is well founded.

Congressional Research Service

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

Contents
Introduction ................................................................................................................................ 1
History and Background.............................................................................................................. 1
Issues for Congress ..................................................................................................................... 4
Capability to Detect and Identify Threats............................................................................... 4
Costs and Benefits ................................................................................................................ 5
Criteria for Secretarial Certification....................................................................................... 6
Durability of Certification Criteria .................................................................................. 6
Amount of Improvement ................................................................................................. 6
Verification of Performance............................................................................................. 7
Performance Aspects Addressed ...................................................................................... 7
Procedural Changes ........................................................................................................ 7
Detection Threshold........................................................................................................ 8
Actions Following Secretarial Certification ........................................................................... 8
Options for Congress .................................................................................................................. 9

Contacts
Author Contact Information ...................................................................................................... 10

Congressional Research Service

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

Introduction
The attacks of September 11, 2001, prompted an increased federal focus on protecting the United
States against terrorist nuclear or radiological attack. Since that time, the federal government has
expanded existing programs, developed new programs, and deployed new equipment at U.S.
borders and elsewhere. The global nuclear detection architecture has multiple facets, including
security to make acquiring threat material more difficult, intelligence activities, law enforcement
activities, and deployment of radiation detection equipment.1 New technologies have been
proposed to replace or augment existing radiation detection equipment and enhance its
effectiveness. Primary among these new systems is an improved type of radiation detection
device known as the Advanced Spectroscopic Portal (ASP). This report provides an overview of
the ASP program’s history and outlines issues for Congress as the program moves forward.
History and Background
The ASP program is an effort by the Department of Homeland Security (DHS) to develop,
procure, and deploy a successor to the existing radiation detection portals. Radiation detection
portals, also known as radiation portal monitors, are designed to detect the emission of radiation
from objects that pass by them. The current portals are generally deployed at the U.S. land and
sea borders by DHS’s Domestic Nuclear Detection Office (DNDO) and operated by DHS’s
Customs and Border Protection (CBP).
When entering the United States, cargo conveyances, such as trucks, are to pass through a
radiation detection portal. This process is called primary screening. If radiation is present, a CBP
officer is to be alerted. The conveyance is to be directed to a second radiation detection portal,
which confirms the presence of radiation and where additional equipment can be used to identify
the origin of the radiation and determine whether it comes from a potential threat. This process is
called secondary screening. Consequently, the current approach to radiation detection at the
border is based on a two-step process using different types of equipment.
The ASP, in contrast, is designed to both detect radiation and identify its source. More effective
detection could increase the likelihood of preventing a nuclear threat from entering the United
States. More effective source identification could reduce the costs and delays associated with
“nuisance alarms” from innocuous radiation sources, such as cat litter or ceramic tiles.
The ASP program was begun in 2004 by the DHS Directorate of Science and Technology, which
funded initial research and development through two broad agency announcements (BAAs).2
When DNDO was established in April 2005,3 responsibility for the ASP program was transferred

1 For more information, see CRS Report RL34574, The Global Nuclear Detection Architecture: Issues for Congress,
by Dana A. Shea.
2 Department of Homeland Security, Homeland Security Advanced Research Projects Agency, Detection Systems for
Radiological and Nuclear Countermeasure
, Proposer Information Pamphlet, Broad Agency Announcement BAA-04-
02, January 30, 2004; and Detection Systems for Radiological and Nuclear Countermeasure, Proposer Information
Pamphlet
, Broad Agency Announcement BAA-05-04, December 2, 2004.
3 The DNDO was first established by presidential directive: Executive Office of the President, The White House,
“Domestic Nuclear Detection,” National Security Presidential Directive NSPD-43/Homeland Security Presidential
Directive HSPD-14, April 15, 2005. Statutory authority was subsequently provided in the SAFE Port Act (P.L. 109-
(continued...)
Congressional Research Service
1

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

to DNDO. In 2005, under DNDO auspices, ASP advanced technology prototypes were tested at
the Nevada Test Site. Subsequent to this testing, DNDO issued a request for proposals regarding
procurement of ASP systems.4
In March 2006, the Government Accountability Office (GAO) expressed concerns that “in tests
performed during 2005, the detection capabilities of the advanced technology prototypes
demonstrated mixed results—in some cases they worked better, but in other cases, they worked
about the same as already deployed systems.”5 The GAO recommended that the Secretary of
Homeland Security work with the Director of DNDO to prepare a cost-benefit analysis for the
deployment of ASPs.
In May 2006, DNDO reported on a cost-benefit analysis that it said supported the proposed ASP
procurement. In July 2006, it awarded contracts to three companies—Raytheon Company,
Thermo Electron Corporation (now known as Thermo Fisher Scientific), and Canberra
Industries—to further develop and manufacture ASP systems. The Raytheon and Thermo systems
used medium-resolution detectors made of sodium iodide (NaI); the high-resolution Canberra
system used high-purity germanium (HPGe). The DHS stated that it planned to procure and
deploy 80 systems quickly and ultimately to deploy a total of about 1,400 at land and sea ports of
entry.6
In October 2006, GAO reported that the DNDO cost-benefit analysis did “not provide a sound
analytical basis for DNDO’s decision to purchase and deploy new portal monitor technology.”7
The GAO’s concerns involved both the cost of ASPs and their performance relative to existing
radiation detection systems.
In the Department of Homeland Security Appropriations Act, 2007 (P.L. 109-295, signed into law
October 4, 2006), Congress prohibited DHS from obligating FY2007 funds for full-scale
procurement of ASPs “until the Secretary of Homeland Security has certified ... that a significant
increase in operational effectiveness will be achieved.” The act did not define or explain the
phrase “significant increase in operational effectiveness.”
Faced with criticism of its test results and cost-benefit analysis, DNDO engaged in a further
round of ASP testing in 2007. These tests were to generate the data needed to support secretarial
certification and to provide additional information regarding the capabilities of the ASP systems.8

(...continued)
347, Section 501).
4 Department of Homeland Security, Domestic Nuclear Detection Office, “Advanced Spectroscopic Program,” Request
for Proposal
, HSHQDC-05-R-00009, October 17, 2005.
5 Government Accountability Office, Combating Nuclear Smuggling: DHS Has Made Progress Deploying Radiation
Detection Equipment at U.S. Ports-of-Entry, but Concerns Remain
, GAO-06-389, March 2006.
6 Remarks by Homeland Security Secretary Michael Chertoff and DNDO Director Vayl Oxford at a Press Conference
to Announce Spectroscopic Portal (ASP) Program Contracts
, July 16, 2006, online at http://www.dhs.gov/xnews/
releases/press_release_0953.shtm.
7 Government Accountability Office, Combating Nuclear Smuggling: DHS’s Cost-benefit Analysis to Support the
Purchase of New Radiation Detection Portal Monitors Was Not Based on Available Performance Data and Did Not
Fully Evaluate All the Monitors’ Costs and Benefits
, GAO-07-133R, October 17, 2006.
8 Testimony of Vayl S. Oxford, Director, Domestic Nuclear Detection Office, before the House Committee on Energy
and Commerce, Subcommittee on Oversight and Investigations, September 18, 2007.
Congressional Research Service
2

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

The GAO reviewed the 2007 ASP tests and criticized them as being methodologically flawed.9
The GAO’s criticisms included the use of the same radiation sources and shielding material for
both calibration and performance testing and the inclusion of test results that might not have
statistical significance. In September 2008, GAO issued another report critical of DNDO’s
ongoing ASP testing.10 It found that further testing by DNDO “provide[d] little information about
the actual performance capabilities of the ASPs,” and that the resulting test report should not be
used in determining whether ASPs are a significant improvement over currently deployed
equipment.
The DNDO strongly disputed these criticisms. In response to GAO’s initial critique, DHS
convened an Independent Review Team to address the criticisms and determine their validity. The
purpose of this review was described as “to assist the Secretary in determining whether he should
certify that there will be a significant increase in operational effectiveness with the procurement
of the ASP system.”11 The Independent Review Team found no bias in the test results, but it
concluded that some aspects of the testing process were “not ideal.”12 The Independent Review
Team also concluded that the test results and measures of effectiveness were not properly linked
to operational outcomes, that the testing up to that point was properly characterized as
developmental, and that no independent operational testing and evaluation had been conducted.13
Following the Independent Review Team review, DNDO undertook another round of ASP testing.
In the Consolidated Appropriations Act, 2008 (P.L. 110-161, signed into law December 26, 2007),
Congress prohibited the obligation of FY2008 funds for full-scale ASP procurement until the
Secretary of Homeland Security certified a “significant increase in operational effectiveness”—
the same language as in the FY2007 act. This time, the act also directed the Secretary to consult
with the National Academy of Sciences before issuing the certification and to submit separate
certifications for ASP’s use in primary and secondary screening.14 (If primary screening detects a
potential threat, secondary screening is undertaken to confirm the detection and identify the
source.) The Consolidated Security, Disaster Assistance, and Continuing Appropriations Act,
2009 (P.L. 110-329, signed into law September 30, 2008), continued the requirement for
secretarial certification before obligation of FY2009 funds. Again, the phrase “significant
increase in operational effectiveness” was not defined or explained in either act.
The DNDO continues to engage in additional testing and evaluation, which it expects will lead to
a secretarial decision regarding certification in mid-2009.15 DNDO officials have stated that they

9 Government Accountability Office, Additional Actions Needed to Ensure Adequate Testing of Next Generation
Radiation Detection Equipment
, GAO-07-1247T, September 18, 2007.
10 Government Accountability Office, Combating Nuclear Smuggling: DHS’s Phase 3 Test Report on Advanced
Spectroscopic Portal Monitors Does Not Fully Disclose the Limitations of the Test Results
, GAO-08-979, September
2008.
11 Testimony of Paul A. Schneider, Under Secretary for Management, Department of Homeland Security, before the
House Committee on Energy and Commerce, Subcommittee on Oversight and Investigations, September 18, 2007.
12 Testimony of George E. Thompson, Deputy Director, Homeland Security Institute, before the House Committee on
Homeland Security, Subcommittee on Emerging Threats, Cybersecurity, Science and Technology, March 5, 2008.
13 Testimony of Vayl S. Oxford, Director, Domestic Nuclear Detection Office, before the House Committee on
Homeland Security, Subcommittee on Emerging Threats, Cybersecurity, and Science and Technology, March 5, 2008.
14 The National Academies are currently engaged in a project evaluating testing, costs, and benefits of the ASP
systems, but they have not yet issued a final report. For more information, see online at
http://www8.nationalacademies.org/cp/projectview.aspx?key=48932.
15 DNDO, personal communication with CRS, March 17, 2009.
Congressional Research Service
3

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

will move forward with the certification decision only when the available test results and other
information are sufficient to support it. If the Secretary of Homeland Security certifies that a
“significant improvement in operational effectiveness” has been achieved, DNDO will be able to
obligate the FY2007, FY2008, and FY2009 funds already appropriated for ASP procurement, if
they have not been reprogrammed for another purpose. Following secretarial certification, DNDO
may choose to begin immediate acquisition and deployment of ASPs at ports of entry, conduct
further ASP system testing, or take some other course. The most recent ASP Project Execution
Plan, which describes the number of ASPs to be procured and how they would be deployed,
reportedly no longer reflects DNDO’s current plans.16
Issues for Congress
Through hearings, letters, legislation, and report language, some Members of Congress have
expressed both concern about the ASP program and support for it. Congress faces policy issues in
several areas: the effectiveness of ASP technology at detecting and identifying threats, the ASP
program’s costs relative to its benefits, the Secretary’s criteria for determining whether ASPs will
provide a “significant increase in operational effectiveness,” and future actions following
secretarial certification.
Capability to Detect and Identify Threats
The effectiveness of ASP technology hinges on its ability to both detect radiation and identify its
source. These tasks are currently performed sequentially, using two different types of equipment.
The ASP technology would integrate the tasks into a single step. A key question for Congress is
whether ASPs would perform sufficiently better than the existing systems to make investment in
them worthwhile. Since the ASP technology is intended to perform both detection and
identification, this question can be asked with respect to both functions.
The DNDO’s ongoing testing is intended to provide the remaining information needed to
compare ASP performance with the performance of existing systems. Because of the criticism of
past ASP test campaigns by GAO and others, Congress directed DHS to have the National
Academies examine the methodology and results of the ASP test campaigns and evaluate how
DNDO uses those results to assess ASP performance. Congress may wish to consider the
sufficiency of DHS’s plans for further ASP development, procurement, and deployment in light of
the National Academies’ assessment.
Some nongovernmental critics believe that even if ASPs are better than existing radiation portal
monitors at detecting and identifying radioactive material, they cannot provide a sufficient
defense. These critics state that nuclear material can be shielded or divided into amounts too
small to be detected and that detection equipment can be avoided by illegally entering the United
States away from official ports of entry.17 These arguments challenge the belief that better

16 Government Accountability Office, Combating Nuclear Smuggling: DHS’s Program to Procure and Deploy
Advanced Radiation Detection Portal Monitors Is Likely to Exceed the Department’s Previous Cost Estimates
, GAO-
08-1108R, September 22, 2008.
17 See, for example, Thomas B. Cochran and Matthew G. McKinzie, “Detecting Nuclear Smuggling,” Scientific
American
, April 2008.
Congressional Research Service
4

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

detection systems are an effective way to protect against the threat of nuclear and radiological
terrorism.
Costs and Benefits
In 2006, DNDO conducted a cost-benefit analysis for the development and deployment of ASP
systems. Additional DNDO cost-benefit analyses are to be used as input to the Secretary’s
certification decision. It appears that the analyses conducted so far have focused mainly on the
economic costs of implementation and the economic benefits to commerce by improving the
efficiency of the radiation screening process.
The expected economic cost of procuring and deploying ASP systems has changed since the
inception of the program, as have the number, type, and purpose of the systems themselves.
Rather than an all-inclusive suite of ASP varieties, DNDO has chosen to focus on a single type of
ASP used to screen cargo conveyances. According to analysis by GAO, the cost of the ASP
program has increased from the original $1.2 billion to approximately $3.1 billion for the
previously planned full deployment or approximately $2.1 billion for the currently planned
reduced deployment. The DNDO asserts that the actual number of deployed systems may change
dramatically depending on the results of ongoing testing.18
The DNDO asserts that the number of nuisance alarms, in which radiation is detected correctly
but comes from an innocuous source, would be greatly reduced following deployment of the ASP
systems. This reduction would result from the ASP’s ability to identify the source of the radiation
it detects and discriminate between dangerous and innocuous sources. Because of this expected
reduction, the number of conveyances that would be required to go through subsequent, more in-
depth screening would be reduced, and as a result, the radiation screening process would have
less impact on commerce. The DNDO stated in 2006, based on its cost-benefit analysis at that
time, that the value of the reduced impact on commerce outweighed the cost of the ASP program
and caused deployment of the ASP systems to be a preferred outcome.
It appears that DNDO’s cost-benefit analyses have not attempted to quantify the security benefit
of making radiation screening more effective: the avoided cost of a nuclear or radiological attack
in the United States that a more effective system might prevent. The omission of this avoided cost
from a cost-benefit analysis might be justified in several ways. One might be that the likelihood
of an avoided successful attack is the same between existing radiation portal systems and the ASP
systems. Another might be that it is too difficult to determine quantitatively the benefit from an
incremental increase in detection effectiveness. Because the potential consequences of a nuclear
or radiological attack would vary widely depending on the location of the attack,and the
likelihood and timing of an attack occurring would depend on a terrorist adversary having the
requisite intent and capability, calculating the benefits of an avoided attack may have significant
uncertainties. Absent such an analysis, however, it is difficult to assess whether a small increase
in detector effectiveness would lead to a substantial reduction of the overall security risk.
The increased cost of the ASP program and related changes in procurement and deployment plans
have led to uncertainty regarding the total costs and benefits of the program. Congress is likely to

18 Government Accountability Office, Combating Nuclear Smuggling: DHS’s Program to Procure and Deploy
Advanced Radiation Detection Portal Monitors Is Likely to Exceed the Department’s Previous Cost Estimates
, GAO-
08-1108R, September 22, 2008.
Congressional Research Service
5

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

continue to be interested in the scope of the ASP program, its total cost, how ASP systems would
be deployed, the calculated benefits of that potential deployment, and the degree to which this
next-generation technology increases homeland security. Additionally, Congress may be
particularly interested in the degree to which potential deployment of ASP systems reduces the
likelihood of a successful attack and how such considerations are weighed and balanced against
other economic factors.
Criteria for Secretarial Certification
The appropriations acts that established the certification requirement provided no definition or
explanation of the phrase “significant increase in operational effectiveness.” Absent further
congressional guidance, DHS established a definition based on a list of criteria and published it as
a memorandum for the record. The GAO and others have criticized these criteria. Congress may
be interested in examining whether the criteria meet the certification requirement’s intent. On the
other hand, considering that Congress has provided no explanation of the requirement in statute
or report language, it may have intended to leave the definition to DHS’s discretion.
Durability of Certification Criteria
The DHS issued a memorandum for the record in July 2008. In the memorandum, DHS agencies,
including DNDO and CBP, jointly established certification criteria that constitute their definition
of “significant increase in operational effectiveness.” The memorandum is unclassified and less
than two pages long. It is possible that additional details supporting the certification criteria are
provided elsewhere, but the memorandum gives no indication that this is the case.
Since this memorandum was issued by the Bush Administration, the Obama Administration may
agree or disagree with the criteria identified. The memorandum for the record documents a
decision-making process internal to DHS and may be altered or overturned at the discretion of the
current Secretary of Homeland Security. The Secretary of Homeland Security could direct the
signatory DHS agencies to revisit the memorandum’s criteria, revise them, or negate them
entirely, establishing a new set of criteria with which to judge the operational effectiveness of the
ASPs. Alternatively, the Secretary of Homeland Security may choose to uphold the memorandum
for the record and maintain the existing certification criteria. These criteria were developed
through a joint process and represent needs and goals established by the technology users (CBP)
and the technology developers (DNDO). As such, they may fully capture the priorities of the
participating agencies.
Amount of Improvement
Several of the criteria require an improvement in some aspect of performance without specifying
a minimum amount of improvement. For the criteria that do specify a minimum amount of
improvement, DHS does not explain how it determined that amount. For those with no specified
minimum, an improvement so small as to be operationally insignificant would apparently be
sufficient. The GAO criticized this approach, which it said
Congressional Research Service
6

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

set a low bar for improvement—for example, by requiring ASPs to perform at least as well
as current generation equipment when nuclear material is present in cargo but not specifying
an actual improvement.19
On the other hand, if the performance of existing systems is already sufficient in certain respects,
it may be appropriate simply to preclude backsliding in those areas while seeking to make larger
improvements in other areas where current performance is less acceptable. For example, DNDO
states that for some threat types, current systems are already expected to detect correctly 100% of
the time, so that further improvement would be impossible.20 Providing fewer quantitative targets
might also allow the criteria to be reused for future decisions about further equipment upgrades.
Verification of Performance
The memorandum establishing the criteria does not define under what test conditions or with
which test data the criteria are to be verified. For example, it does not specify the types, amounts,
or configurations of threat material that are to be detected. Other documents may provide these
details, or DNDO may have specific plans that it has not documented formally. In some cases,
DNDO officials have stated how particular criteria will be assessed. For example, previously
scheduled field validation tests that involve the screening of trucks in actual commerce are to be
used to assess the time required for secondary screening, and the results of a specific test
campaign at the Nevada Test Site are to be used to assess the ASP’s ability to detect special
nuclear material.21
Performance Aspects Addressed
The criteria address certain aspects of performance, such as detection rates and false alarm rates,
but do not expressly address others, such as reliability, ease of use, and cost. For example, the
criteria compare ASP performance versus the performance of current systems on a one-to-one
basis, without regard to cost, even though ASPs are more expensive than current systems. As the
technology developer, DNDO, and the technology user, CBP, jointly established these criteria,
these choices presumably reflect DHS’s conclusions about which aspects of performance are most
important. Nevertheless, some experts have expressed concern about the criteria’s balance,
asserting that the criteria should focus more on increasing the likelihood of detecting a genuine
threat, rather than on reducing the false alarm rate.22
Procedural Changes
The memorandum establishing the criteria states that performance comparisons against currently
deployed systems are to be made on the basis of current concepts of operations (CONOPs) and
standard operating procedures (SOPs). The ASP systems are to combine radiation detection (the

19 Government Accountability Office, Combating Nuclear Smuggling: DHS Needs to Consider the Full Costs and
Complete All Tests Prior to Making a Decision on Whether to Purchase Advanced Portal Monitors
, GAO-08-1178T,
September 25, 2008.
20 DNDO, personal communication with CRS, October 9, 2008.
21 DNDO, personal communication with CRS, October 9, 2008.
22 Testimony of Thomas B. Cochran, Ph.D., Senior Scientist, Nuclear Program, Natural Resources Defense Council,
before the Senate Committee on Homeland Security and Governmental Affairs, September 25, 2008.
Congressional Research Service
7

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

goal of primary screening) with identification of the radiation source (the goal of secondary
screening). One might expect that either adding an identification capability to the detection stage
or adding a detection capability to the identification stage would be accompanied by changes in
CONOPs and SOPs, but no such changes are reflected in the criteria. If changes in CONOPs and
SOPs could improve the performance of the ASPs in the field, then assessing performance using
test data may not reflect their full capabilities.
Detection Threshold
Finally, the criteria compare ASP performance against the performance of current systems set at
current operational detection thresholds. They do not compare performance against the same
equipment set at other thresholds that might have different operational ramifications, such as
higher detection and false positive rates. The DHS has considered such scenarios in some past
analyses but does not require such consideration in the context of the certification criteria.
Actions Following Secretarial Certification
The date for secretarial certification has been postponed several times. The current reported date
is mid-2009, but DNDO officials have stated that they will move forward with the certification
decision only when the available test results and other information are sufficient to support it. At
the same time as the secretarial certification, DHS would determine whether to proceed with full-
scale production of the ASP systems.
If the Secretary of Homeland Security decides to make the required certification on the basis of
the existing or new certification criteria, several choices would remain about how to proceed. The
Secretary may decide that ASP systems should be fully deployed. The DHS could use whatever
funds remain from prior-year appropriations for ASP procurement to begin this process and
would likely request additional funds in future fiscal years to continue and complete the process.23
The Secretary may decide that while ASP systems do represent a “significant improvement in
operational effectiveness,” their costs make them less desirable than other possible detection
improvements. For example, rather than procure ASP systems, DHS might invest in additional
existing secondary inspection systems, achieving comparable reductions in secondary screening
time. The DHS has stated that cost-benefit analyses will inform the Secretary’s certification
decision, even though the criteria do not mention cost.
The Secretary may decide to acquire and deploy ASP systems on a limited basis. For example,
ASP systems might be deployed at high-throughput locations only. It is possible that the benefits
of ASPs outweigh their cost in some locations but not others. While preferring to procure ASP
systems in large numbers for system performance uniformity and economies of scale, DNDO has
stated that it will present various deployment strategies to the Secretary.24

23 The DNDO received approximately $107 million in FY2007 and $90 million in FY2008 for the radiation portal
monitor program, which includes the ASP program (Domestic Nuclear Detection Office, Department of Homeland
Security, Fiscal Year 2009 Congressional Justification, p. DNDO ACQ-13). P.L. 110-329 provided $120 million for
the radiation portal monitor program for FY2009.
24 Testimony of Vayl S. Oxford, Director, Domestic Nuclear Detection Office, before the Senate Committee on
Homeland Security and Governmental Affairs, September 25, 2008.
Congressional Research Service
8

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

Upon secretarial certification, Congress may be interested in the manner and scale of ASP
procurement, where and how initial ASP systems would be deployed, and the projected future
deployment of these systems. The existing radiation portal monitor program has been a multiyear
program with continued phased deployment. Consequently, the required time to replace these
systems may be of congressional interest. Finally, if the existing radiation portals are superseded
by ASP systems, Congress may be interested in the expected lifetime of those ASP systems and
DHS’s expectation of the development of a next-generation system to replace those ASP systems.
Options for Congress
Congress has several options for addressing the ASP program. Those options include providing
legislative guidance to DHS regarding certification of the ASP systems and awaiting the
Secretary’s decisions regarding certification and procurement.
A key question of possible congressional interest might be whether the approach taken by DHS in
determining a “significant increase in operational effectiveness” meets congressional intent. The
definition developed by DHS for a “significant increase in operational effectiveness” may meet
congressional intent, and Congress may be fully supportive of DNDO moving forward with ASP
procurement and deployment. Alternatively, Congress might choose to restrict the Secretary’s
discretion by defining a “significant increase in operational effectiveness” for DHS or by
delineating what areas need to be addressed by DHS when it defines a “significant increase in
operational effectiveness.” Congress could even prohibit further action on the ASP program if it
disagreed with the Secretary’s judgment regarding certification.
An alternative approach to providing legislative guidance would be for Congress to set a deadline
for secretarial certification. The DHS has not met previous expectations for the date of
certification. Instead, it has engaged in further development and testing following criticisms of its
test procedures and results. Congress might pass legislation directing DHS make a determination
regarding the “significant increase in operational effectiveness” by a specified date rather than
continuing with more tests and developmental work.
Congress might also choose to continue to leave the criteria and schedule for secretarial
certification to DHS, focusing instead on oversight activities. Both the 109th and the 110th
Congress held series of oversight hearings on the ASP program. Further scrutiny of DHS and
oversight of the testing and certification process may help to ensure that DHS’s decision to certify
and procure the ASP system is well founded.
If secretarial certification occurs, but Congress determines that the certification did not meet its
legislative intent, Congress might place additional restrictions or requirements on the ASP
program. Examples of such restrictions or requirements might include limiting the rate of
procurement of ASP systems, directing DHS to reevaluate its decision-making process, or
requiring analysis of the certification decision by a third party. Congress could even rescind ASP
procurement funding appropriated in previous years.
Lastly, Congress might choose to change the direction of the program if secretarial certification
does not go forward as planned. Policymakers might choose to direct DNDO to change its
expectations of the ASP technology performance and scope, as to match the tested capabilities.
Alternatively, policymakers might direct DNDO to invest additional funds into further
development for a fixed period of time, to transfer the program focus away from procurement and
Congressional Research Service
9

The Advanced Spectroscopic Portal Program: Background and Issues for Congress

towards development milestones. Finally, policymakers might direct DNDO to enhance their
development of alternate technologies beyond those incorporated in the ASP systems, attempting
to achieve a breakthrough in technology development.

Author Contact Information

Dana A. Shea
Daniel Morgan
Specialist in Science and Technology Policy
Analyst in Science and Technology Policy
dshea@crs.loc.gov, 7-6844
dmorgan@crs.loc.gov, 7-5849
John D. Moteff

Specialist in Science and Technology Policy
jmoteff@crs.loc.gov, 7-1435




Congressional Research Service
10