Providing material support for terrorism
Providing material support for terrorism is a provision of the USA PATRIOT Act, codified at section 2339B, title 18 of the United States Code, which prohibits material support to groups designated as terrorists. The four types of support described are “training,” “expert advice or assistance,” “service,” and “personnel.” In June 2010 the United States Supreme Court upheld the law in an as-applied challenge in the case Holder v. Humanitarian Law Project, but also left open the door for other as-applied challenges. Plaintiffs in the case had sought to help the Kurdistan Workers’ Party in Turkey and the Liberation Tigers of Tamil Eelam learn means of peacefully resolving conflicts.
The material support provisions have been criticized by rights groups as violating the First Amendment, as they criminalize activities like the distribution of literature, engaging in political advocacy, participating in peace conferences, training in human rights advocacy, and donating cash and humanitarian assistance, even when the support is intended only to promote lawful and non-violent activities. The provisions are vague and wide-ranging, and impose guilt by association by punishing people not for their own acts but for the acts of those they have supported. The Secretary of State's power to designate groups as terrorist has also been criticized as being too broad, giving the Executive too much discretionary power to label groups as "terrorist" and criminalize their supporters. The American Civil Liberties Union note that: “Federal “material support” and conspiracy statutes allow the government to secure convictions without having to show that any specific act of terrorism has taken place, or is being planned, or even that a defendant intended to further terrorism.” 
David Cole, in his book Terrorism and the Constitution, stated that: “… after lying virtually dormant for its first six years of existence, the material support law has since 9/11 become the Justice Department's most popular charge in antiterrorism cases. The allure is easy to see: convictions under the law require no proof that the defendant engaged in terrorism, aided or abetted terrorism, or conspired to commit terrorism. But what makes the law attractive to prosecutors - its sweeping ambit - is precisely what makes it so dangerous to civil liberties.”  Professor Jeanne Theoharis describes the measures in equally critical terms: “Material support laws are the black box of domestic terrorism prosecutions, a shape-shifting space into which all sorts of constitutionally protected activities can be thrown and classified as suspect, if not criminal. Their vagueness is key. They criminalize guilt by association and often use political and religious beliefs to demonstrate intent and state of mind.”
U.S. State Senator Patrick Leahy sent a letter to Attorney General Eric Holder and Secretary of State Hillary Rodham Clinton regarding humanitarian relief in Somalia in 2011. “I have long urged reform of our laws governing so-called material support for terrorism. The current law is so broad as to be unworkable. Aid workers trying to provide relief to starving Somalis fear they could be prosecuted if some of it were to end up in the hands of al-Shabab, an al Qaeda affiliate that controls parts of Somalia. And so while the situation in Somalia grows more desperate each day, with children dying needlessly, the delivery of food and medicines is hampered, first by al-Shabab, which is denying access to broad swaths of Somali territory, and secondly, by our overly restrictive laws. The Secretary of State has the power to grant exemptions where the purpose is not to engage in terrorist activity. She should use that authority immediately to ensure aid can reach as many Somalis as possible.”
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The following people have been charged or convicted of providing material support for terrorism under this law.
- John Walker Lindh, who was captured fighting for the Taliban during the Battle of Qala-i-Jangi, one of the first battles in the 2001 invasion of Afghanistan. He was sentenced to 20 years in federal prison on various charges.
- David Hicks, a former Guantanamo detainee who pled guilty in 2007 and served a sentence of less than one year in Australia.
- Lynne Stewart, a 70 year old veteran civil rights lawyer who was sentenced to 10 years in prison for releasing information from her imprisoned client Omar Abdel-Rahman.
- Salim Ahmed Hamdan, a former Guantanamo detainee who was Osama bin Laden's former driver. He was convicted in 2008 and served a sentence of less than one year in Yemen. See 8 U.S.C. § 2339B.
- Mohammed Abdullah Warsame, who attended the al Farouq training camp in 2000.
In September 2010 the Federal Bureau of Investigation raided activists in Minneapolis and Chicago, seizing computers, cell phones and files and issuing subpoenas to some targeted individuals to appear before a federal grand jury. The FBI agents were seeking evidence of ties to foreign terrorist organizations, including the Revolutionary Armed Forces of Colombia and the Popular Front for the Liberation of Palestine. Attorneys linked the raids to the Holder v. Humanitarian Law Project decision.
- Adam Liptak, Court Affirms Ban on Aiding Groups Tied to Terror, The New York Times, June 21, 2010.
- David Cole and James X. Dempsey (2006) Terrorism and the Constitution: Sacrificing Civil Liberties in the Name of National Security (New Press)
- "Attorney who helped terrorist gets 10 years in prison". New York Post. 15 July 2010. Retrieved 3 December 2010.
- Tran, Mark (2007-06-05). "Profile: Salim Ahmed Hamdan". London: The Guardian. Retrieved 2007-08-01.
- "Minneapolis Man Pleads Guilty to Conspiracy to Provide Material Support to al Qaeda". Federal Bureau of Investigation. 2009-05-20. Archived from the original on 2009-08-24. "According to the plea agreement, from about March 2000 through at least December 2003, Warsame conspired with others to provide material support to al Qaeda in the form of personnel, training, and currency. Specifically, in March 2000, Warsame traveled to Afghanistan where he attended an al Qaeda training camp outside Kabul. In the summer of 2000, he then traveled to the al Faruq training camp, where he received further training and met Osama Bin Laden. Warsame subsequently worked at an al Qaeda guesthouse and clinic."
- "Minneapolis Man Sentenced for Conspiracy to Provide Material Support to al Qaeda". Federal Bureau of Investigation. 2009-07-09. Archived from the original on 2009-08-24.
- Tarm, Michael; Sophia Tareen (24 January 2013). "American Mumbai Plotter Sentenced to 35 Years". Associated Press appearing on ABCNEWS.com. Retrieved 24 January 2013.
- Sweeney, Annie (24 January 2013). "Chicago man gets 35 years in Mumbai terror attack". Chicago Tribune. Retrieved 24 January 2013.
- "David Headley has no right to live: relative of 26/11 US victims". Press Trust of India appearing on NDTV.com. 24 January 2013. Retrieved 24 January 2013.
- Colin Moynihan, F.B.I. Searches Antiwar Activists’ Homes, New York Times, September 24, 2010
- Search warrant and subpoena (Indymedia)
- Sheila Regan, FBI raids activist homes in Minneapolis, Chicago, Twin Cities Daily Planet, September 24, 2010.
- Activists to Protest Recent FBI Raids on Anti-War Members, Associated Press, September 24, 2010.