Warren Buffett, chairman and CEO of Berkshire Hathaway
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Warren Buffett, chairman and CEO of Berkshire Hathaway, speaks during a hearing about 'Federal Estate Tax: Uncertainty in Planning Under the Current Law' on Capitol Hill in Washington, November 14, 2007. Berkshire Hathaway said on Tuesday it planned to buy 60 percent of manufacturing and services group Marmon Holdings Inc. for $4.5 billion. (Jason Reed/Reuters)