polonium-210
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French experts say there’s no proof Yasser Arafat was poisoned: widowExtensive reports by French scientists into Palestinian leader Yasser Arafat's death have ruled out poisoning by radioactive polonium, his widow said Tuesday.WorldDec 3, 2013
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Explainer: What is polonium and how deadly is it?The deadly radioactive element polonium first hit the headlines when it was used to kill KGB agent-turned-Kremlin critic Alexander Litvinenko in London in 2006. Here are some facts about polonium.ScienceNov 7, 2013
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Swiss scientists say Arafat polonium poisoning could not have been accidentalPalestinian leader Yasser Arafat ingested lethal radioactive polonium before his death nine years ago and had high levels of it in his body that could not have been accidental, Swiss scientists confirmed Thursday.WorldNov 7, 2013
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Arafat widow says his successors must seek justiceThe Palestinian leadership must seek justice for Yasser Arafat after Swiss scientists found evidence suggesting he may have been poisoned by a radioactive substance, his widow said Thursday.WorldNov 7, 2013