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LONDON - JULY 18: Boris Berezovsky gives a statement to the press at the RUSI on July 18, 2007 in London, England. Berezovsky says British police advised him three weeks ago to leave the country as they believed his life was under threat from a Russian assassin. The British police have now advised Berezovsky it is now safe to come back to Britain. (Photo by Cate Gillon/Getty Images)
LONDON - JULY 18: Boris Berezovsky gives a statement to the press at the RUSI on July 18, 2007 in London, England. Berezovsky says British police advised him three weeks ago to leave the country as they believed his life was under threat from a Russian assassin. The British police have now advised Berezovsky it is now safe to come back to Britain. (Photo by Cate Gillon/Getty Images)

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How Berezovsky lost 6 billion dollars

CNN's Atika Shubert reports on Boris Berezovsky's financial downfall while in exile.

How Berezovsky lost 6 billion dollars

CNN's Atika Shubert reports on Boris Berezovsky's financial downfall while in exile.