"WASHINGTON -- Nuclear Regulatory Commission staffers are rejecting the concerns of lawmakers, state officials and watchdog groups who say nuclear waste tightly packed in spent-fuel pools at U.S. power plants is vulnerable to terrorist attacks."

"Children may enjoy plopping down in foam-filled chairs just their size, but a report released Wednesday by several advocacy groups says those chairs may contain flame retardants that could be harmful."

"Biofuels producers and their political allies are ramping up public and behind-the-scenes pressure on the Environmental Protection Agency to rethink its plan to scale back the national biofuels blending mandate."

"WASHINGTON — A federal appeals court ruled Tuesday that the Energy Department must stop collecting fees of about $750 million a year that are paid by consumers and intended to fund a program for the disposal of nuclear waste. The reason, the court said, is that there is no such program."

"Sunday’s apparent tornado damaged the shutdown Paducah nuclear fuel factory, but officials say they can find no evidence of leaks or danger to the public."

"The Nuclear Regulatory Commission (NRC) has ordered its staff to get back to work finalizing a review of a controversial nuclear waste dump in Nevada."

"A major rail industry group is calling for updating or phasing out thousands of tank cars used to carry crude oil, as federal officials weigh new regulations on moving hazardous materials by rail."

"Biofuels makers and corn producers are not happy about the Environmental Protection Agency scaling back on renewable-fuel levels for next year, and they're united about who's to blame: the oil industry."

"A violent storm system pounded the Midwest on Sunday with tornadoes, strong winds and heavy rain, killing at least six people, injuring dozens and collapsing homes and other buildings."

"WASHINGTON — In windowless rooms from here to California, nearly 10,000 electrical engineers, cybersecurity specialists, utility executives and F.B.I. agents furiously grappled over 48 hours with an unseen 'enemy' who tried to turn out the lights across America. The enemy injected computer viruses into grid control systems, bombed transformers and substations and knocked out power lines by the dozen."