Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., speaks during a book promotion event with former U.S. Treasury Secretary Henry Paulson, in Omaha, Nebraska, U.S., on Tuesday, Feb. 9, 2010. Paulson said the U.S. government will be repaid for "every penny" of the funds it put into the country's banks. Photographer: Michelle Bishop/Bloomberg via Getty Images