U.S. and Foreign Regulators Consider Tightening Controls on Deadly Polonium 210
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Nuclear regulators are considering tightening security on polonium 210 in case terrorists seek the material for so-called dirty bombs.
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Some congressional Democrats raised security concerns Wednesday about a proposed shipment of 300 pounds of weapons-grade plutonium from the United States to France for conversion into a mixed-oxide fuel.
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U.S. regulators were trying to decide whether to allow the release of 48 million doses of Chiron Corp.'s flu vaccine when British authorities stepped in to block the company from shipping the vaccine, FDA officials said Friday.
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A federal panel chooses a go-slow approach to investigating whether workers got cancer at the nuclear weapons facility
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Concern over Chinaâs use of surveillance technology prompts new rules for U.S. exports.
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A team of U.S. technicians will on Monday start disabling North Korea's nuclear complex which makes weapons-grade plutonium, a senior U.S. envoy said on Saturday, under a multinational disarmament deal.
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U.S. environmental regulators are  considering removing lead, a heavy metal linked to learning  problems in children, from a list of regulated pollutants  because past rules have greatly reduced levels of the toxin.
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A former Russian spy was buried Thursday in a sealed coffin to prevent further contamination by the radioactive substance that killed him. But whoever poisoned Alexander Litvinenko with polonium-210 appears to have left a lengthening trail of victims.
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When the South Korean government admitted last month that scientists at its state-run research centers conducted experiments in plutonium extraction in the early 1980s and uranium enrichment tests in 2000, the international community decried the incidents
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A shipment of weapons-grade plutonium has left the United States for a nuclear reactor in France, drawing protests from activists who believe the shipment poses both an environmental and terrorist threat.
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Scientists examined the corpse of a former Russian spy in Britain on Friday to try to discover when and how he ingested a fatal dose of radioactive material.
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PARIS, Aug 17  (IPS) - The fatal accident at the Japanese nuclear power  plant Mihama last week has raised  fears about French nuclear  facilities -- and also the desire to have more.
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The U.N. nuclear watchdog is worried the  U.S.-led war aimed at disarming Iraq may have unleashed a  proliferation crisis if looters have sold equipment that can be  used to make atomic weapons, Western diplomats said.
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Sweden's top nuclear officials on Friday decided U.N. experts should be invited to inspect the country's atomic power plants after a string of malfunctions raised concerns about safety. The relatively minor incidents have not posed any threat of radioactive leaks. But the frequency of the problems have sparked calls for a review of the safety controls at the power plants, which generate about half of Sweden's electricity.
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Litvinenko, shown before his illness, died Thursday. WHAT IS POLONIUM-210? Polonium-210 is one of the world's rarest elements.Comment
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KARIWA, Japan  - A Japanese nuclear power plant was ordered to stay closed until safety was assured after an earthquake caused radiation leaks, while the U.N. nuclear watchdog said the operator had misjudged the risks.
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The National Nuclear Security Administration proposed a $1.1 million civil penalty against the former manager of a nuclear weapons lab for safety violations that included a researcher spreading radiological contamination to two other states and workers inhaling radioactive substances.