"Three Mile Island plant, scene of the worst nuclear power accident in the US, shut down automatically after failure of a coolant pump. Officials say the Three Mile Island shutdown poses no threat."

"In a letter submitted Friday afternoon to internal investigators at the Nuclear Regulatory Commission, a whistleblower engineer within the agency accused regulators of deliberately covering up information relating to the vulnerability of U.S. nuclear power facilities that sit downstream from large dams and reservoirs."

"The letter also accuses the agency of failing to act to correct these vulnerabilities despite being aware of the risks for years.

"TOKYO -- The Japanese government has decided to phase out nuclear power by sometime in the 2030s and shift the country in the direction of renewables, energy conservation and natural gas."

"Rising seawater temperatures forced an unprecedented shutdown last month of a nuclear reactor on the Connecticut coast."

"YORK, PA -- Roughly 50 workers at Peach Bottom Atomic Power Station were exposed to low levels of radiation early Tuesday after a discharge of contaminated steam."

"After Edison submits a plan to restart one reactor at San Onofre, the Nuclear Regulatory Commission is expected to take months to review it."

"Nearly two years before peace activists broke into a U.S. nuclear weapons facility in late July, government investigators warned in classified reports of lax security at the complex where the nation's largest concentration of weapons-grade uranium is stored."

Land contamination may be as important as the direct radiation dose to humans in setting safety standards for nuclear plants, the disaster at Japan's Fukushima site suggests.

"A rugged stretch of coastline known as Japan's Nuclear Alley is dotted with 14 nuclear reactors and now there are warnings that several of these ageing nuclear plants sit near, or on, active faultlines."

"The U.S. Nuclear Regulatory Commission (NRC) directed its staff on Thursday to start an environmental review into the temporary storage of spent nuclear fuel, following a court ruling that led the agency to stop issuing new reactor licenses."

"Residents in almost all parts of the United States live on lands that contain minor to substantial concentrations of radionuclides of one type or another.1 These substances often make their way into tap water, leading to exposures by ingestion, inhalation, or dermal pathways during showering or other contact with the water.

"The last few days may have seen the demise of two reactor projects that had looked promising a few years ago, when the economy was strong and people worried about the high price of natural gas and the possibility of a price on carbon emissions."

"Picture this: you’ve lived in the same house for more than half a century, and never taken out the garbage."

"YAKIMA, Wash. -- The company hired to design and build a massive plant at the nation's most contaminated nuclear site should no longer have authority over its design, according to an internal U.S. Department of Energy memo released Tuesday."

"Policymakers determined to maintain nuclear energy believed most people would still want it as part of the nation’s power generation despite the accident at the Fukushima No. 1 nuclear plant. Their calculations were way off."