"MONTREAL -- Weapons-grade uranium is quietly being transported within Canada, and into the United States, in shipments the country's nuclear watchdog wants to keep cloaked in secrecy."

"The Nuclear Regulatory Commission unanimously approved a radical new reactor design on Thursday, clearing away a major obstacle for two utilities to begin construction on projects in South Carolina and Georgia.

"Decommissioning Fukushima Daiichi nuclear power plant will take three or four decades, Japan's government said on Wednesday as it unveiled plans for the next phase of a huge and costly cleanup of the tsunami-wrecked complex."

"TOKYO -- Prime Minister Yoshihiko Noda of Japan today declared that the damaged reactors at the Fukushima Daiichi nuclear power plant have been brought to a state of cold shutdown, turning a corner in the world's worst nuclear disaster since Chernobyl.

'The nuclear reactors have reached a state of cold shutdown and therefore we can now confirm that we have come to the end of the accident phase of the actual reactors,' Prime Minister Noda told a news conference.

"RICHMOND, Va. -- A company lobbying lawmakers to unearth in Southside Virginia what is thought to be the nation's largest uranium deposit needs to overcome significant health and environmental obstacles before the site is mined, according to a long-awaited study released Monday."

"In the last-minute rush in Congress to finalize spending for the current fiscal year and head home for the holidays, one of the losers appears to be USEC, the uranium enrichment company, and the politics are more convoluted than ever.

"MONTPELIER, Vt. -- The likely death of a planned nuclear waste site at Nevada's Yucca Mountain has left federal agencies looking for a possible replacement. A national lab working for the U.S. Department of Energy is now eying granite deposits stretching from Georgia to Maine as potential sites, along with big sections of Minnesota and Wisconsin where that rock is prevalent."

"The Cold War brought mercury to Oak Ridge, and it never really left. In the 1950s and early 1960s, the Y-12 nuclear weapons plant used enormous quantities of mercury — about 24 million pounds all told — to process lithium for hydrogen bombs.The work was urgent, secret and messy."

"CHALK RIVER, Ontario — At 3:07 p.m. on Friday, Dec. 12, 1952, the National Research Experimental nuclear reactor, then the most powerful research reactor on Earth, raced out of control, rapidly overheated and exploded, destroying the reactor core and spewing radioactive gases and debris into the atmosphere."