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3. Testimony of Jerome Bjelopera. (2015). Terror inmates: countering violent extremism in prison and beyond, Committee on Homeland Security Subcommittee on Counterterrorism and Intelligence, House of Representatives, 114th Cong. 1.
4. Testimony of Daveed Gartenstein-Ross. (2006) Prison radicalization: are terrorist cells forming in U.S. cell blocks? Senate Homeland Security and Governmental Affairs Committee, U.S. Senate, 109th Cong. 2.
5. Hamm, M. (2007). Terrorist recruitment in American correctional institutions: an exploratory study of non-traditional faith groups (document no. 220957). U.S. Department of Justice. Washington, DC: U.S. Government Printing Office.