1. 2018 United States national strategy for counterterrorism. https://www.dni.gov/files/NCTC/documents/news_documents/NSCT.pdf
2. International Convention Against the Taking of Hostages, 17 December 1979, https://treaties.un.org/pages/ViewDetails.aspx?src = IND&mtdsg_no = XVIII-5&chapter = 18&clang = _en
3. International Convention for the Suppression of Terrorist Bombings, 15 December 1997, https://treaties.un.org/pages/ViewDetails.aspx?src = IND&mtdsg_no = XVIII-9&chapter = 18&clang = _en
4. Office of the Director of National Intelligence, Annual Threat Assessment of the U.S. Intelligence Community, February 6, 2023, https://www.dni.gov/files/ODNI/documents/assessments/ATA-2023-Unclassified-Report.pdf
5. U.S. Department of Justice, national security division, About the Division, https://www.justice.gov/nsd/about-division