A letter regarding potential seismic hazards at nuclear facilities citing the Fukushima incident as a predictor of future events. 

Last month the Interagency Security Classification Appeals Panel (ISCAP), the nation's highest classification authority, released a number of top-level government memoranda that shed additional light on the so-called NUMEC affair, "the story that won't go away-the possibility that in the 1960s, Israel stole bomb-grade uranium from a US nuclear fuel-processing plant."

Detecting nuclear radiation is easy. All you need is a simple, inexpensive Geiger counter. But to be able to precisely identify both the type of radiation and where it is coming from is much more challenging. That's crucial for everything from searching for possible nuclear weapons in shipping containers to performing routine maintenance or emergency response in nuclear power plants.

The Obama administration is sticking to a plan to develop controversial new warheads for the U.S. nuclear arsenal, but opponents of the project are holding out hope that officials could still change course.

Looking at the most recent developments in Russia, China, Iran and Pakistan, as well as North Korea, it would seem urgent that the U.S. end as soon as possible its era of nuclear neglect.

Japan's cabinet on Friday approved an energy policy reversing the previous government's plans to gradually mothball nuclear power plants, a move likely to be unpopular with a wary public following the 2011 Fukushima disaster.