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Warren Buffett, chairman of Berkshire Hathaway Inc., right, and Bill Gates, chairman of Microsoft Corp., play table tennis during an event at the annual shareholders meeting in Omaha, Nebraska, U.S., on Sunday, May 6, 2012. Berkshire Hathaway Inc. investment managers Todd Combs and Ted Weschler receive $1 million salaries and can earn more if their bets beat the Standard & Poor's 500 Index, Buffett said Sunday. Photographer: Daniel Acker/Bloomberg via Getty Images

Warren Buffett, chairman of Berkshire Hathaway Inc., right, and Bill Gates, chairman of Microsoft Corp., play table tennis during an event at the annual shareholders meeting in Omaha, Nebraska, U.S., on Sunday, May 6, 2012. Berkshire Hathaway Inc. investment managers Todd Combs and Ted Weschler receive $1 million salaries and can earn more if their bets beat the Standard & Poor's 500 Index, Buffett said Sunday. Photographer: Daniel Acker/Bloomberg via Getty Images