"More than a quarter of U.S. nuclear plant operators have failed to properly tell regulators about equipment defects that could imperil reactor safety, according to a report by the Nuclear Regulatory Commission's inspector general."

"The threat of the release of highly radioactive spent fuel at a Japanese nuclear plant has revived a debate in the United States about how to manage such waste and has led to new recriminations over a derailed plan for a national repository in Nevada."

"The Japanese authorities are considering a plan to import bottled water from overseas, a government official said Thursday morning, a day after spreading contamination from a crippled nuclear plant led to a panicked rush to buy water in Tokyo."

"A spike in radiation levels in Tokyo tap water spurred new fears about food safety Wednesday as rising black smoke forced another evacuation of workers trying to stabilize Japan's radiation-leaking nuclear plant."

"Tokyo Electric says fuel rods at its Fukushima Daiichi power plant have been damaged, releasing five kinds of radioactive material and contaminating seawater nearby."

"What had been growing acceptance of nuclear power in the United States has eroded sharply in the wake of the nuclear crisis in Japan, with support for building nuclear power plants dropping slightly lower than it was immediately after the accident at the Three Mile Island plant in 1979, according to a CBS News poll released on Tuesday evening."

"A map of radiation levels in Japan released by the US Department of Energy on Tuesday evening indicates that potentially dangerous levels of radioactive contamination have spread beyond the 13-mile evacuation zone surrounding the Fukushima Daiichi nuclear plant."

"The Food and Drug Administration said Tuesday it would halt imports of dairy products and produce from the area of Japan where a nuclear reactor is leaking radiation."

As the Nuclear Regulatory Commission begins a presidentially ordered review of U.S. nuclear power-plant safety, the NRC's chief operations officer says no major safety changes are needed.

"Just a month before a powerful earthquake and tsunami crippled the Fukushima Daiichi plant at the center of Japan's nuclear crisis, government regulators approved a 10-year extension for the oldest of the six reactors at the power station despite warnings about its safety."

"TEPCO says it's not hiding anything, but critics have complained for years that it and other Japanese nuclear power plant operators have withheld information about safety violations and accidents."

"Japan's 'nuclear samurai' are risking their lives to avert catastrophe, but many are manual labourers unequal to the task."

"Chile and the U.S. signed a nuclear energy accord Friday even as fears of radiation spread in Japan after a devastating earthquake and tsunami severely damaged some of its nuclear reactors."

"Operators evacuated workers from Japan's tsunami-damaged nuclear plant Monday after gray smoke rose from one of its reactor units, the latest of persistent troubles in stabilizing the radiation-leaking complex."

"The chairman of the Nuclear Regulatory Commission said Sunday morning that the spent fuel pools at American nuclear reactors are less vulnerable than the ones in Japan because of steps ordered by his agency after the attacks of Sept. 11, 2001, including having utilities prepare to use fire hoses to pump in extra water in the event ordinary cooling systems are knocked out."