1. Hans M. Kristensen, “Russian Nuclear Forces,” http://projects.sipri.se/nuclear/russia.pdf, and “US Nuclear Forces,” http://projects.sipri.se/nuclear/usa.pdf.
2. John Lewis Gaddis, The Long Peace: Inquiries into the History of the Cold War (Oxford: Oxford University Press). John Mearsheimer has even suggested that nuclear proliferation could enhance post—Cold War security. See John Mearsheimer, “Back to the Future: Instability in Europe After the Cold War,” International Security 15, no. 4 (1990): 5–56.
3. Paul Harris, “Bush Plans New Nuclear Weapons,” Observer, November 30, 2003.
4. Peter W. Singer, "Corporate Warriors: The Rise and Ramifications of the Privatized Military Industry," International Security 26, no. 3 (2001): 186-220
5. Garry Cleaver, "Subcontracting Military Power: The Privatisation of Security in Contemporary SubSaharan Africa," Crime Law and Social Change 33, no. 1-2 (2000): 131-49.