Alexander Litvinenko, who died of a large dose of radioactive polonium-210 in London, UK, may have come into contact with other people before he died. People who fear they may have been in contact with him are to have urine tests. Traces of radioactivity have been detected at a sushi bar and the Millennium Hotel in London - Litvinenko had been in both places on November 1st. [click link for full

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