Articles

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

Damir Kovačević, Afrimadona, and Martin Claar's (KAC) statistical adjudication between the potential role of norms versus strategic deterrence in preventing interstate chemical-weapons use is a welcome contribution (Vol. 26, Nos. 3–4, pp. 251–66). The authors conclude that a powerful non-use norm is the most convincing explanation for downtrending chemical warfare. However, closer examination by  David M. Allison and Stephen Herzog in this response to the original article reveals several analytical issues, including inaccurate presentation of data and alternative explanations, that may undermine their results.

The arguments in favor of the United States' declaring that the only purpose of its nuclear weapons is to deter others who possess them from using theirs — in other words, that in no circumstances will this country use nuclear weapons first — are far stronger than the arguments against this stance. It must be hoped that the next US administration will take this no-first-use step promptly.

Fifteen Minutes sat down with Professor Robert N. Stavins, Director of the Harvard Environmental Economics Program, to talk about cap-and-trade, the Peace Corps, and what individuals can do to combat climate change.

Since September 11, 2001, China has substantially advanced its physical protection system, with a switch in focus from the traditional "guns, gates, guards" approach to an effective mixed approach, combining personnel with modern techniques. Then-Chinese President Hu Jintao emphasized at the 2012 Nuclear Security Summit that, "In the future, China will further take nuclear security measures, make sure the security of its own nuclear materials and facilities, improve the overall nuclear security." This paper examines the specific and detailed physical protection approaches that are currently applied to China's nuclear power plants, and recommends further steps to improve China's existing nuclear security system.

"The project is examining ideas that are similar to Kyoto’s top-down approach, though stronger, as well as approaches that are substantially different. Key ideas in play range from indexing emissions targets to economic growth, to bottom-up approaches, such as linking together the actions of a number of countries. One of the project’s key goals is to persuade the countries of the world not only to look at ideas similar to the Kyoto Protocol, but also to look at ideas that are very different in structure."