On October 27, the House Transportation and Infrastructure Committee held a hearing titled "Prevention of and Response to the Arrival of a Dirty Bomb at a U.S. Port."

Matthew Bunn, William Tobey, and I have a new op-ed in The Hill’s Congress Blog, “Don’t weaken our defenses against nuclear smuggling.” We wrote it in response to proposed legislation that would prohibit funding for fixed radiation detectors to catch nuclear smugglers – both for installing new ones and even for maintaining the ones U.S. taxpayers have already paid billions to install.

The snow is melting in Boston and it is hard not to feel the optimism this brings.  But if you are someone who worries about nuclear issues and need more good news, you can find it in an unlikely place – the new Russian Military Doctrine published this past December.

In the lead-up to the nuclear security summit, Advancing Nuclear Security: Evaluating Progress and Setting New Goals outlines what was accomplished in a four-year effort launched in 2009 to secure nuclear material around the globe—and what remains to be done. The effort made significant progress, but some weapons-usable nuclear materials still remain “dangerously vulnerable." The authors highlight the continuing danger of nuclear and radiological terrorism and call for urgent action.

In the spectrum of threats to nuclear security, highly radioactive materials such as cesium-137 and cobalt-60 represent a set of concerns and challenges which is much different from that of fissile materials like highly enriched uranium. Unlike the latter, they cannot be used to build a nuclear weapon. However, terrorists could use such sources to construct a so-called “dirty bomb”, an improvised explosive device which spreads the radioactive substances in a populated area. Although, according to most planning scenarios, such a “dirty bomb” would likely cause few radiation-related casualties, its economic effects could still be in the billions of dollars – especially if parts of a city needed to be shut down for weeks or months while they are being decontaminated.

Next month, top leaders from over 50 countries will meet at the 2014 Hague Nuclear Security Summit.  The leaders’ fundamental goal remains to prevent nuclear terrorism by implementing effective security at all sites that store or process nuclear weapons or fissile materials, or which operate nuclear reactors.

William H. Tobey, and Matthew Bunn presented "The Non-State Actor Nuclear Supply Chain" at the Workshop on “Cooperation to Control Non-State Nuclear Proliferation: Extra-Territorial Jurisdiction and UN Resolutions 1540 and 1373” sponsored by the Nautilus Institute for Security and Sustainability on April 4 and 5, 2011.

How much nuclear material has leaked, and is it in the hands of terrorists, in storage somewhere, or still in circulation? No one knows for sure, but the task of cleaning up the nuclear black market amounts to an Armageddon test for global intelligence. The standard for success is unforgiving: all nuclear material must be recovered before it finds its way into an improvised nuclear device.

This report on the 2006 seizure of weapon-grade highly enriched uranium (HEU) in Georgia, by journalist Michael Bronner, provides new insights on both nuclear smugglers and those trying to stop them.

Publications related to Stopping Nuclear Smuggling.