1. Code of Federal Regulations Title 28-Judicial Administration, Chapter I-Department of Justice, PART 0, Subpart P-Federal Bureau of Investigation, Section 0.85 General functions.
2. A history of terrorism;Laqueur,1977
3. Germs: biological weapons and America’s secret war;Miller,2001
4. Biohazard;Alibek,1999
5. Origins of terrorism;Reich,1998