Order Code RS22222 
August 16, 2005 
 
CRS Report for Congress 
Received through the CRS Web 
 
Material Support of Terrorists and Foreign 
Terrorist Organizations: Expiring 
Amendments in Brief 
 
Charles Doyle 
Senior Specialist 
American Law Division 
Summary 
      Section 6603 of the Intelligence Reform and Terrorism Prevention Act of 2004 
amends two federal terrorist assistance prohibitions. Those amendments expire on 
December 31, 2006, P.L. 108-458, 118 Stat. 3762-764 (2004). Under the provisions of 
the proposed H.R. 3199, as passed by the House, and S. 1389, as passed by the Senate, 
the amendments would become permanent. In their present form the amendments, 
found in section 6603 of the act, temporarily: (1) amend the definitions of “material 
support or resources,” “training,” and “expert advice or assistance” as those terms are 
used in 18 U.S.C. 2339A and 2339B, and of “personnel” as used in section 2339B; (2) 
add a more explicit knowledge requirement to section 2339B; (3) expand the 
extraterritorial jurisdiction reach of section 2339B; (4) enlarge the list of federal 
crimes of terrorism, 18 U.S.C. 2332b(g)(5); (5) add the enlarged list to the inventory 
of predicate offenses for 18 U.S.C. 2339A (material support for the commission of 
certain terrorist crimes) and consequently for 18 U.S.C. 2339B (material support for 
designated terrorist organizations); and (6) preclude prosecution for certain violations 
committed with the approval of the Secretary of State and concurrence of the Attorney 
General (e.g., stings). 
 
     This is an abbreviated version of CRS Report RL33035, Material Support of 
Terrorists and Foreign Terrorist Organizations: Sunset Amendments, without the 
footnotes, appendix, and some of the citations to authority found in the longer, parent 
report. 
 
Material Support – Definitions: Sections 2339A and 2339B are proximity crimes. They 
proscribe certain conduct because of its proximity to other crimes, in this case terrorist 
offenses. Section 2339A outlaws providing material support or resources for the 
commission of any of several designated federal crimes that a terrorist might commit or 
attempting or conspiring to such support or assistance; section 2339B outlaws providing 
material support or resources to a designated foreign terrorist organization or attempting 
or conspiring to do so. 
 
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Congressional Research Service ˜ The Library of Congress 
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     Section  6603  of  the  Intelligence  Reform and Prevention of Terrorism Act made 
several amendments to section 2339A and 2339B in response to judicial decisions that 
either found them unconstitutionally vague or suggested a demanding mens rea 
(knowledge) requirement. Section 2339A contains a definition of “material support or 
resources” that applies to both sections, 18 U.S.C. 2339A(b). Some courts had been 
particularly troubled by the uncertain sweep of the terms “training,” “personnel,” and 
“expert advice or assistance” used in the definition. The Ninth Circuit, for instance, had 
found the terms unconstitutionally vague, Humanitarian Law Project v. Reno, 205 F.3d 
1130, 1137-138 (9th  Cir. 2000); “personnel” because the term might be thought to 
envelope the efforts of a simple advocate; “training” because the term might be thought 
to sweep in benign academic instruction; and “expert advice or assistance” because like 
“personnel” and “training” might be read to include First Amendment protected pure 
speech and advocacy. 
 
     Section  6603  supplied  a  new definition for “training”– “the term ‘training’ means 
instruction or teaching designed to impart a specific skill, as opposed to general 
knowledge,” 18 U.S.C. 2339A(b)(2). As explained by Justice Department witnesses, “[the 
amendment] would also add a specific definition of ‘training’ in response to the Ninth 
Circuit’s decision that this term too was unconstitutionally vague. . . As an example, the 
court opined that the term conceivably could include teaching members of foreign 
terrorist organizations to use international human rights laws to resolve conflicts in a 
peaceful manner. [The amendment] would alleviate such concerns by limiting the term 
‘training’ to ‘instruction or teaching designed to impart a specific skill, as opposed to 
general knowledge’. . .” Critics might argue that the attempted fix appears to turn on the 
dubious premise that effective advocacy (e.g., peaceful conflict resolution through the use 
of human rights laws) is not a skill. 
 
     The same might be said of section 6603’s new definition of “expert advice or 
assistance” plucked from the Federal Rules of Evidence – “the term ‘expert advice or 
assistance’ means advice or assistance derived from scientific, technical or other 
specialized knowledge,” 18 U.S.C. 2339A(b)(3). 
 
     Section 6603 may rely on its First Amendment disclaimer to answer the objection that 
the uncertainty of the two terms could chill or lead to prosecution of mere advocacy or 
other First Amendment protected activities – at least with regard to prosecutions under 
2339B: “Nothing in this section shall be construed or applied so as to abridge the  
exercise of rights guaranteed under the First Amendment to the Constitution of the 
United States,” 18 U.S.C. 2339B(i). 
 
     In any event, section 6603’s new explanation of the scope of the prohibition against 
providing “personnel” in section 2339B seems far more specific and to correspond more 
closely the courts’ concerns: 
 
No person may be prosecuted under this section in connection with the 
term"personnel" unless that person has knowingly provided, attempted to provide, 
or conspired to provide a foreign terrorist organization with 1 or more individuals 
(whomay be or include himself) to work under that terrorist organization's direction 
or control or to organize, manage, supervise, or otherwise direct the operation of 
that organization. Individuals who act entirely independently of the foreign terrorist 
 
 
 
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organization to advance its goals or objectives shall not be considered to be working 
under the foreign terrorist organization's direction and control. 18 U.S.C. 2339B(h). 
 
     Finally,  section  6603  addressed  an  ambiguity inherent in the earlier definition. In its 
earlier form, the definition of “material support or resources” in subsection 2339A 
included a mixture of tangible things and other things that might more properly be 
considered benefits or services (e.g., currency and training). Yet this defining mixture 
ended with the catch-all phrase, “and other physical assets,” 18 U.S.C. 2339A)(b)(2000 
ed.). Section 6603 responded with an amendment to section 2339A stating that “material 
support or resources” covers services and other intangible property, and that the specific 
types of property and services mentioned are simply examples. 
 
     Critics might contend that by eliminating the ambiguity in favor of the more sweeping 
construction (“property, tangible or intangible, or services including” versus “property . . 
or other physical assets”) the amendment is more likely to create than dissipate 
vagueness. 
 
     The  first  court  to  pass  upon  the  constitutionality of section 6603’s clarifying 
amendments gave them a mixed grade: section 6603 did cure the vagueness problems 
associated with use of the term “personnel,” but the terms “training” and “expert advice 
or assistance” remain unconstitutionally vague notwithstanding the amendments in 
section 6603, the term “service” which section 6603 added to the definition of prohibited 
support or resources is itself unconstitutionally vague, and the “boilerplate” First 
Amendment clause does nothing to supply greater clarity, Humanitarian Law Project v. 
Gonzales, __F.Supp.2d __, ___ (C.D. Cal. July 25, 2005). 
 
     The  First  Amendment  clause,  in  the  court’s view, is “inadequate to cure potential 
vagueness issues because it does not clarify the prohibited conduct with sufficient 
definiteness for ordinary people,” id. at n.20. By the same token, the court felt that “for 
the average person with no background in law,” use of a definition from the Federal 
Rules of Evidence would do little to clarify the mysteries of the term “expert advice or 
assistance,” id. at ___ . And “[e]ven as amended [by section 6603], the term “training” is 
not sufficiently clear so that persons of ordinary intelligence can reasonably understand 
what conduct the statute prohibits,” particularly when the term “easily encompasses 
protected speech and advocacy,” id. at__. Since the term “service” is defined to include 
“training” and “expert advice or assistance,” they pull the term down with them, id. at __. 
 
Material Support – Knowledge: Section 2339B outlaws “knowing” violations. Narrowly 
construed, this might serve as a counter balance for the suspect reach of the “material 
support” element. The temporary amendment, however, added the caveat that, “[t]o 
violate this paragraph, a person must have knowledge that the organization is a 
designated terrorist organization (as defined in subsection (g)(6)), that the organization 
has engaged or engages in terrorist activity (as defined in section 212(a)(3)(B) of the 
Immigration and Nationality Act), or that the organization has engaged or engages in 
terrorism (as defined in section 140(d)(2) of the Foreign Relations Authorization Act, 
Fiscal Years 1988 and 1989), 18 U.S.C. 2339B(a)(1),” 18 U.S.C. 2339B(a)(1). 
 
     Justice Department officials urged the adoption of the addition in order to avoid case 
law  indicating that  conviction would require either  proof of  knowledge of  the  specific 
 
 
 
 
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facts that led to a particular entity being designated a terrorist organization or proof of 
knowledge that the assistance provided would be used for terrorist purposes. The change 
seems to foreclose those problems, but it does little for any vagueness problems. 
 
Material Support – Overseas Application: As a result of modifications by section 6603, 
section 2339B now describes its overseas application more explicitly and more 
expansively than was once the case. It permits federal prosecution of an act proscribed in 
section 2339B and committed entirely abroad by a foreign national with no greater 
connection to the United States required than that we have been able to bring the offender 
to this country for trial, 18 U.S.C. 2339B(d)(1)(D)(“There is jurisdiction over an offense 
under subsection (a) if . . . (D) after the conduct required for the offense occurs an 
offender is brought into or found in the Untied States, even if the conduct required for the 
offense occurs outside the United States”). 
 
     In  its  other  modifications  to  jurisdiction, section 6603 arguably does no more than 
articulate more specifically the pre-existing reach of section 2339B. Prior to the 
enactment of section 6603, section 2339B applied to anyone who acted “within the 
United States or subject to the jurisdiction of the United States,” when they provided 
material support to a foreign terrorist organization, 18 U.S.C. 2339B(a)(1)(2000 ed.). A 
person “subject to the jurisdiction of the United States” arguably referred to American 
citizens, residents of this country, and entities organized under our laws. Moreover, if  
extraterritorial jurisdiction existed over the underlying offense, it was said to exist over 
aiding and abetting the commission of the underlying offense or over conspiracy to 
commit it. 
 
      Section  6603  removed  the  phrase  “within the United States or subject to the 
jurisdiction of the United States,” from section 2339B(a)(1) and provided a more explicit 
list of jurisdictional circumstances in section 2339B(d)(1), i.e., the offense is committed 
in whole or in part within the United States; the offender is a U.S. citizen, permanent 
resident alien, or habitual U.S. resident; the offense occurs in or affects U.S. interstate or 
foreign commerce; the offender is later found or brought to the U.S.; or the offender is an 
accomplice or (aider or abetter) or conspirator with respect to a violation of the section by 
another over whom the U.S. has subject matter jurisdiction. 
 
Federal Crimes of Terrorism: Section 2339A outlaws providing material support or 
resources with the intent that they be used for the commission of certain designated 
violent crimes (predicate offenses). Section 6603 enlarged the list of predicate offenses to 
include any “federal crime of terrorism” cited in 18 U.S.C. 2332b(g)(5)(B). Section  
2339A already covered assistance rendered for the commission of the following: 
 
18 U.S.C. 32 (destruction of aircraft) 
18 U.S.C. 37 (violence at international airports) 
18 U.S.C. 81 (arson within a federal enclave) 
18 U.S.C. 175 (biological weapons offenses) 
18 U.S.C. 229 (chemical weapons offenses) 
18 U.S.C. 351 (murder, kidnaping, or assault upon Members of Congress, etc.) 
18 U.S.C. 831(nuclear material offenses) 
18 U.S.C. 842(m) or (n) (plastic explosives offenses) 
18 U.S.C. 844(f) or (i)(bombing federal property or property in or affecting commerce) 
18 U.S.C. 930(c) (homicide with dangerous weapon in a federal facility) 
 
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18 U.S.C. 956 (conspiracy to commit certain violent crimes overseas) 
18 U.S.C. 1114 (murder of a federal officer or employees) 
18 U.S.C. 1116 (murder of a foreign dignitary) 
18 U.S.C. 1203 (hostage taking) 
18 U.S.C. 1361 (destruction of federal property) 
18 U.S.C. 1362 (destruction of communications property) 
18 U.S.C. 1363 (destruction of property within a federal enclave) 
18 U.S.C. 1366 (destruction of an energy facility), 
18 U.S.C. 1751 (murder, kidnaping or assault of the President, etc.) 
18 U.S.C. 1992 (train wrecking) 
18 U.S.C. 1993 (violent attacks on mass transit) 
18 U.S.C. 2155 (destruction of national defense material) 
18 U.S.C. 2156 (production of defective national defense material) 
18 U.S.C. 2280 (violence against maritime navigation) 
18 U.S.C. 2281 (violence against maritime fixed platforms) 
18 U.S.C. 2332 (violence against Americans overseas) 
18 U.S.C. 2332a (weapons of mass destruction offenses) 
18 U.S.C. 2332b (multinational terrorism) 
18 U.S.C. 2332f (bombing public places or facilities) 
18 U.S.C. 2340A (torture) 
42 U.S.C. 2284 (atomic weapons offenses) 
49 U.S.C. 46502 (air piracy) 
49 U.S.C. 60123(b) (destruction of gas pipeline facilities) 
 
With the addition of the federal crimes of terrorism not already among the enumerated, 
section 2339A now also condemns assistance relating to: 
 
18 U.S.C. 175b (unlawful possession biological materials) 
18 U.S.C. 175c (smallpox virus offenses) 
18 U.S.C. 1030(a)(1), (5)(A)(i)(certain computer fraud and abuse offenses) 
18 U.S.C. 2332g (anti-aircraft offenses) 
18 U.S.C. 2332h (radiological dispersal device offenses) 
18 U.S.C. 2339 (harboring terrorists) 
18 U.S.C. 2339C (financing of terrorism) 
42 U.S.C. 2122 (atomic weapons offenses) 
49 U.S.C. 46504 (2d sentence) (assault on a flight crew with a dangerous weapon) 
49 U.S.C. 46505(b)(3) or (c) (explosive or incendiary devices, or endangerment of 
human life by means of weapons, on an aircraft within U.S. jurisdiction) 
49 U.S.C. 46506 (homicide or attempted homicide aboard an aircraft within U.S. 
jurisdiction). 
 
     In certain of the earlier versions of the intelligence reform legislation, and in various 
free standing bills devoted to a similar purpose, proponents would have brought any 
crime of “international or domestic terrorism” (18 U.S.C. 2331) rather than “any federal 
crime of terrorism” (18 U.S.C. 2332b(g)(5)(B)) within the circle of predicate offenses. 
Use of the phrase “international or domestic terrorism” has generated considerable debate 
in the context of the USA PATRIOT Act, and it may be for this reason that the more 
narrowly and precisely defined “federal crime of terrorism” cross reference was 
ultimately selected. 
 
     Section  6603  also  introduced  two  crimes – 18 U.S.C. 1361 (destruction of federal 
property) and 18 U.S.C. 2156 (production of defective national defense material) – into 
the family of federal crimes  of terrorism.     Both  crimes were already predicate offenses 
 
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in section 2339A, so it was unnecessary to introduce them into section 2332b(g)(5)(B) in 
order to bring them within section 2339A. 
 
     Of  course  there  are  other  consequences that flow from including sections 1361 and 
2156 within the definition of federal crimes of terrorism under section 2332b(g)(5)(B). 
Prior to designation as federal crimes of terrorism, violations of section 2156 were 
subject to the general five year statute of limitations, 18 U.S.C. 3282; now they are 
subject to an eight year statute of limitations unless they involve the risk of death or 
serious bodily injury in which case they may be prosecuted at any time, 18 U.S.C. 3286. 
Violations of section 1361 which were already subject to an eight year statute of 
limitations, 18 U.S.C. 3286, may now be prosecuted at any time if they involve the risk 
of death or serious injury, id. Prior to designation as a federal crime of terrorism 
conviction and imprisonment for violation of either section carried a maximum term of 
supervised release of not more than three years; the maximum term is now supervision 
for life or any term of years following a conviction for violation of either section that 
involves the risk of death or serious injury, 18 U.S.C. 3583. Prior to designation as a 
federal crime of terrorism, suspects charged with a violation of either section were 
entitled to normal bail procedures; now they face the rebuttable presumption of pre-trial 
detention, 18 U.S.C. 3142. Prior to designation as a federal crime of terrorism, neither 
section appeared as a racketeering (RICO) predicate offense, 18 U.S.C. 1961 (federal 
racketeering statutes outlaw the patterned commission of a predicate offense or offenses 
to acquire or operate an enterprise in or affecting interstate commerce, 18 U.S.C. 1961-
1962). By designation as a RICO predicate they also become money laundering predicate 
offenses under sections 18 U.S.C. 1956, 1957 (18 U.S.C. 1956(c)(7)(A), 1957(f)(3)), a 
status which section 1361 but not section 2156 already enjoyed, 18 U.S.C. 1956(c) 
(7)(D). 
 
Prosecutorial Forbearance: Section 6603 also added an immunity provision under which 
an individual or entity who provides “personnel,” “training,” or “expert advice or 
assistance” in violation of section 2339B may not be prosecuted if the offense was 
committed with the prior approval of the Secretary of State and the Attorney General as 
long as the support cannot be used to carry out the various violent acts of terrorism 
described in 8 U.S.C. 1182(a)(3)(B)(iii) (hijacking, sabotage, hostage taking, 
assassination and the like), 18 U.S.C. 2339B(j). 
 
     The  provision  is  presumably  designed to encourage “stings” and other undercover 
investigations. It is not clear why it is necessary. No prosecution of 18 U.S.C. 2339B, or 
any other federal crime for that matter, is possible without the Attorney General’s 
approval, ordinarily exercised through the various United States Attorneys, F.R.Crim.P. 
7(c)(indictments must be signed by the attorney for the government). Of course, the State 
Department is more likely to be involved in activities abroad.