The Doomsday Clock is an internationally recognized design that conveys how close we are to destroying our civilization with dangerous technologies of our own making. First and foremost among these are nuclear weapons, but the dangers include climate-changing technologies, emerging... Read More
Last month's Boston Marathon bombing was horrific enough without getting into ways in which it could have been worse. But in fact there is one avenue of speculation worth exploring, because doing so could help keep cities safe in the future: What if the explosive devices allegedly used by the Tsarnaev brothers had contained radioactive material? What would be the effect of such a so-called dirty bomb?
Martyl Langsdorf, the artist who created the Doomsday Clock, died on March 26th at the age of 96 in Chicago. Known to many friends and fans simply as Martyl, she was a petite and vivacious woman who had an outsize influence on public consciousness about nuclear weapons through her design of the clock that first graced the cover of the Bulletin of the Atomic Scientists in 1947, and continues to be used today.
Pronouncements from Pyongyang during the past few weeks have been ominous, among other things threatening the United States and South Korea with preemptive nuclear attacks. North Korea announced on April 2 that it would restart its nuclear facilities, including its 5-megawatt nuclear reactor in Yongbyon, north of the capital, which had been disabled and mothballed since an agreement in October 2007.
It has been 30 years since US President Ronald Reagan called for development of a missile defense system that was supposed to make nuclear weapons "impotent and obsolete." The Strategic Defense Initiative (SDI) launched by Reagan's famous "Star Wars" speech in March 1983 has survived to the present day, but with ever-lower expectations.
They identify with different ends of the political spectrum, but nuclear disarmament activists and anti-abortion protesters have something in common: A desire to protect innocent life.
That shared interest represents a major opportunity that disarmament activists are letting slip by. Though nuclear weapons pose as great a danger to the planet as ever, the disarmament movement has flagged since the end of the Cold War. It can and should reinvigorate itself by recruiting anti-abortion Christians.
In his second Roundtable essay, Alexandr Vurim characterized me as representing a "conventional perspective" toward converting research reactors to low-enriched uranium (LEU) from highly enriched uranium (HEU).
This Roundtable discussion has been very thought-provoking, and has encouraged me to look with new eyes at certain issues that surround the conversion of Kazakhstan's research reactors from highly enriched uranium (HEU) to low-enriched uranium (LEU).
Since the early 1990s, the nonproliferation community has obsessed over the annual appropriations to programs at the US defense, state, and energy departments that are designed to keep weapons of mass destruction (WMD) out of the wrong hands. While the budgets of individual programs have fluctuated, the unmistakable trend in US nonproliferation spending was upward. Program managers could generally count on this year's budget being higher than last year's, and next year's being higher still.
Seamos realistas: El Grupo de Suministradores Nucleares (GSN) se percibe en general como un mecanismo de exclusión, y quizás esto sea realmente así. En esta Mesa Redonda la ampliación del número de miembros del grupo ha sido un tema importante de debate.
In my part of Africa, when people are faced with a large, daunting problem, someone often asks, "How do we eat this elephant?" The typical response is: "Piece by piece!" Minimizing the use of highly enriched uranium (HEU) can be seen as an elephant that, indeed, can only be eaten piece by piece.