June 1, 2012

Proliferation Security Initiative: Origins and Evolution

Failure as a Policy Catalyst On December 9, 2002, the United States and Spanish navies cooperated to interdict a North Korean vessel, the So San, in the Arabian Sea.1 The operation initially appeared to be an unqualified success, a textbook example of interdiction to prevent proliferation of weapons of mass destruction (WMD), related materials, or