In The Hague, leaders have agreed on a new initiative to secure dangerous radiological sources that might be used in a so-called “dirty bomb” – to prevent incidents like the December 2013 theft of a truck carrying a deadly source in Mexico.

In August of 2002, the United States – assisted by a gift from the Nuclear Threat Initiative, when it turned out no U.S. agency had money that was not blocked from doing what was needed – helped airlift 48 kilograms of 80% enriched highly enriched uranium out of the Vinca nuclear research institute in Serbia.  A force of 1,200 armed troops guarded the shipment as it moved from the lab to the airport.  Under international rules, this was dangerous “Category I” material requiring the highest level of security. But under Department of Energy (DOE) rules for categorizing nuclear material, if the same material had been at a DOE site, it would have been considered “Category III” material requiring hardly any security.

Urgent actions are needed to prevent a nuclear or radiological 9/11.  Terrorists are actively seeking nuclear weapons and Radiological Dispersal Devices (RDDs) and the materials to make them.  There are scores of sites where the essential ingredients of nuclear weapons exist, in dozens of countries worldwide.  There are thousands of sites worldwide where radiological materials exist.  Many of these sites are not sufficiently secured to defeat the kinds of threats that terrorists and criminals have demonstrated they can pose.  A dangerous gap remains between the urgency of the threat of nuclear and radiological terrorism and the scope and pace of the U.S. and world response.  While the gap has narrowed significantly in recent years, much more needs to be done.  This paper describes the nuclear and radiological terrorism threats, analyzes the actions taken so far to address these threats, and recommends further actions going forward.