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LONDON - NOVEMBER 20: In this image made available on November 25, 2006, Alexander Litvinenko is pictured at the Intensive Care Unit of University College Hospital on November 20, 2006 in London, England. The 43-year-old former KGB spy who died on Thursday 23rd November, accused Russian President Vladimir Putin in the involvement of his death. Mr Litvinenko died following the presence of the radioactive polonium-210 in his body. Russia's foreign intelligence service has denied any involvement in the case. (Photo by Natasja Weitsz/Getty Images)