Preventing Catastrophic Nuclear Terrorism makes clear what is needed to reduce the possibility of nuclear terrorism. It identifies where efforts have fallen short in securing and eliminating nuclear weapons and weapons-usable nuclear materials, and it offers realistic recommendations to plug these gaps in the U.S. and international response.

The threat of a nuclear attack—especially a nuclear detonation—by terrorists has never been greater. The United States and the international community must do more to prevent terrorists from buying, stealing, or building nuclear weapons. This report identifies where efforts have fallen short in securing and eliminating nuclear weapons and weapons-usable nuclear materials, and it offers realistic recommendations to plug these gaps in the U.S. and international response.

A profile of the chemical agent mustard gas.