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Associated Press
Marina Litvinenko, right, the widow of former Russian intelligence officer Alexander Litvinenko, arrives for the first day of a scheduled two-day Pre-Inquest Review at Camden Town Hall in London, Thursday, Dec. 13, 2012.  Alexander Litvinenko died in a London hospital in 2006, with the rare radioactive substance polonium-210 being found in his body.   (AP Photo/Matt Dunham)

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