Like inhabitants of a city preparing for a siege, operators of the nuclear reactor here have spent days working to defend it against the swollen Missouri River at its doorstep.

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.

A task force created after the accident at the nuclear plant, Fukushima Daiichi, delivered

Spider webs line the 50-story cooling towers, parts have been amputated for the scrap value of their nickel or copper, and the control room still has analog dials at Bellefonte 1, a half-built nuclear plant here that was shelved 23 years ago.

Residents say the reactor will benefit the local economy.

This does not seem like a particularly opportune moment to breathe life back into a reactor t

As officials in Japan agonise over what constitutes a safe radiation dose for people who live near the Fukushima Daiichi nuclear reactors, the state of the science has been a daunting problem.

The threat of a catastrophic release of radioactive materials from a spent fuel pool at Japan

In a setback for the only model of nuclear reactor for which ground has been broken in the United States, government regulators have found additional problems with the design of its shield building, a crucial component, the chairman of the Nuclear Regulatory Commission said on Friday.

The Nuclear Regulatory Commission has more questions for Westinghouse, the manufacturer of the new AP1000 react

Despite repeated assurances that American nuclear plants are better equipped to deal with natural disasters than their counterparts in Japan, regulators said Thursday that recent inspections had found serious problems with some emergency equipment that would have made it unusable in an accident.

N.R.C.

A commission created to help resolve the impasse over the disposal of the nation

With a federal plan to handle nuclear waste in deadlocked disarray, an advisory panel that has spent 20 years studying a proposed repository at Yucca Mountain turned Wednesday to discussing ways of reusing the fuel instead.

Yucca Mountain was supposed to be the answer to the U.S.'s nuclear waste problem, but after 22 years and $9 billion, that vision is dead. Now, some say that doing nothing in the near term may be the smartest solution.

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