The appalling events of September 11, 2001 require a major international initiative to strengthen security for such materials and facilities worldwide, and to put stringent security standards in place. This paper recommends a range of specific steps to upgrade security at individual facilities and strengthen national and international standards, with the goal of building a world in which all weapons-usable nuclear material is secure and accounted for, and all nuclear facilities secured from sabotage, with sufficient transparency that the international community can have confidence that this is the case. These steps will cost money, and accomplishing them will require sustained political leadership and reconsideration of a range of past policies and approaches. But the costs and risks of failing to act are far higher than the costs of acting now.
Bunn, Matthew, and George Bunn. "Reducing the Threat of Nuclear Theft and Sabotage." Proceedings of the Symposium on International Safeguards: Verification and Nuclear Material Security (October 2001).