Nuclear Issues

Joseph Nye considers lessons from his own work on preventing the spread of nuclear technology in the 1970s.

Mohammad Tabaar analyzes Iran's strategy to weaken Israel and divide the Middle East.

Calder Walton says both seek to topple the United States from atop world stage, with China's blend of money, influence, all-hands-on-deck approach posing the greater threat.

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.

No great breakthroughs or dramatic developments were expected at the Biden-Putin summit, and none was achieved. But the message was clear: There is a new sheriff in town. Putin noticed, describing Biden as very different from Trump—experienced, balanced, and professional.

In this issue, we highlight five new books by Belfer Center members.

A comparative analysis of the United States’ and the Soviet Union’s previously underexplored radiological weapons programs identifies the drivers behind their rise and demise. The findings of this analysis illuminate the factors likely to affect the pursuit of radiological weapons by other states in the future.

Bill de Blasio warned New Yorkers on Friday that their city might be subject to retaliatory attacks from Iran. “I’m not saying this to be alarmist,” the mayor said as he and his underlings ticked off—in a slightly alarming fashion—a series of defensive measures the city might take after the American air strike that killed the Iranian general Qassem Soleimani. Though the New York Police Department had received no specific, credible threats, de Blasio and other officials warned of more bag checks at the subways and increased police presence throughout the city. The city is no stranger to terrorism and would maintain a better-safe-than-sorry posture. “If you see something, say something,” de Blasio said.

Joseph Nye writes that In the cyber realm, the same program can be used for legitimate or malicious purposes, depending on the user’s intent. But if that makes traditional arms-control treaties impossible to verify, it may still be possible to set limits on certain types of civilian targets and negotiate rough rules of the road that limit conflict.

Stephen Walt writes an open letter to Donald Trump on how to deal with the Islamic Republic—and his own administration.