"Japan plans to ask pregnant women and children to move away from radiation 'hotspots' that were found far away from the crippled Fukushima nuclear plant, the government said on Thursday, reflecting new anxieties about the spread of radioactivity."

"Nuclear safety rules in the United States do not adequately weigh the risk that a single event would knock out electricity from both the grid and from emergency generators, as an earthquake and tsunami recently did at a nuclear plant in Japan, officials of the Nuclear Regulatory Commission said Wednesday."

"Nearly three-quarters of Japanese voters want to see a gradual phase-out of nuclear power, a newspaper poll showed on Tuesday, the latest sign of concerns about atomic safety as the country struggles with the world's worst nuclear crisis in 25 years."

"Radioactive strontium up to 240 times the legal concentration limit has been detected in seawater samples collected near an intake at the crippled Fukushima Daiichi nuclear plant, Tokyo Electric Power Co. said Sunday."

Firefighters working dangerous night shifts were barely beginning to get a handle on some 6 wildfires in Arizona that were spreading to New Mexico, the largest of which, the Wallow fire, was barely more than 10 percent contained. Regional smoke continued to be a serious health threat. Authorities looked for a human cause to blame the fire on, even though the tinder-dry conditions had been causing the Wallow fire to spread at nearly 1,000 acres per hour. Evacuations began in New Mexico even as some Arizona evacuees were being allowed to return home.

"A panel of three federal administrative law judges has announced it is delaying Diablo Canyon nuclear power plant’s license renewal until at least December 2015." The renewal will await further seismic studies.

"Imagine a country where corruption is rampant, infrastructure is very poor, or the quality of security is in question. Now what if that country built a nuclear power plant?"

"A fire in an electrical switch room on Tuesday briefly knocked out cooling for a pool holding spent nuclear fuel at the Fort Calhoun nuclear plant outside Omaha, Neb., plant officials said."

"The Fukushima meltdown showed how some nuclear plants are vulnerable to cooling-system failures. That might be of interest to Al Qaeda, which considered attacking US nuclear facilities after 9/11, a new study says."

"Flames from a mammoth forest fire licked the ridges surrounding the eastern Arizona town of Eagar on Tuesday afternoon, forcing the evacuation of about half the 4,000 residents as surrounding towns also prepared to empty."