1. National Institutes of Justice. Available at: http://www.nij.gov/topics/crime/terrorism/Pages/welcome.aspx.
2. Integrated United States Security Database (IUSSD). Data on the Terrorist Attacks in the United States Homeland, 1970 to 2011 Final Report to Resilient Systems Division, DHS Science and Technology Directorate. Available at: https://www.start.umd.edu/sites/default/files/files/publications/START_IUSSDDataTerroristAttacksUS_1970-2011.pdf.
3. The neglected home front;Flynn;Foreign Affairs,2004
4. Integrated response to the dynamic threat of school violence;Callaway;Prehosp Disaster Med,2010
5. C-TECC Guidelines. Available at: www.c-tecc.org.