Nuclear Issues

Ryan Snyder and Benoît Pelopidas respond to Keir A. Lieber and Daryl G. Press's spring 2017 article, “The New Era of Counterforce: Technological Change and the Future of Nuclear Deterrence.”

The risks of nuclear escalation between the U.S. and China or Russia are greater than ever given the possibility of misinterpreted cyber espionage and military strikes against early warning systems. What can be done to reduce this risk?

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."

Much of the immediate commentary on the Joint Comprehensive Plan of Action (JCPOA) signed between the P5+1 and Iran on July 14 focused on the deal’s details as well as its many shortcomings. Most of these reactions, both favoring and opposing the agreement, focused on elements of the nuclear package itself.

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.

Safety has always been an important criterion for designing nuclear reactors, but in addition to safety, there are at least four other values that play a key role, namely, security (i.e., sabotage and proliferation), sustainability (i.e., environmental impacts, energy resource availability), economic viability (i.e., embarking on new technology and its continuation), as well as intergenerational justice (i.e., what we leave behind for future generations). This chapter reviews the evolution of generations of nuclear reactors (I, II, III, III, and IV) in terms of these values.

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.