FILE - In this May, 6, 2013, file photo, Berkshire chairman and CEO Warren Buffett is interviewed in Omaha, Neb. Buffett is offering a refresher course on his approach to investing in his 2014 annual ... more 
FILE - In this May, 6, 2013, file photo, Berkshire chairman and CEO Warren Buffett is interviewed in Omaha, Neb. Buffett is offering a refresher course on his approach to investing in his 2014 annual letter to Berkshire Hathaway Inc. shareholders. (AP Photo/Nati Harnik, File) less 
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Associated Press | Photo By Nati Harnik, File
Mon, Feb 24, 2014 2:00 PM EST