U.S. loose nukes http://www.thebulletin.org/columns/pavel-podvig/20070913.html
By Pavel Podvig | 13 September 2007
The idea that lax accounting, a violation of security procedures, and/or plain negligence could cause a warhead to disappear from a nuclear superpower's arsenal without notice was one of the scariest scenarios in the immediate post-Cold War period. More than a decade later, it turns out these concerns weren't unfounded. Such a scenario more or less occurred at the end of August. The only surprise was where it happened--not in Russia or one of the former Soviet republics as expected, but in the United States. http://www.thebulletin.org/columns/pavel-podvig/20070913.html