Warren Buffett releases annual letter on Friday - Article Photos 1/1

FILE- In this May 6, 2012, file photo,Warren Buffett, chairman and CEO of Berkshire Hathaway, plays bridge during the annual shareholders meeting in Omaha, Neb. Warren Buffett will release his annual letter to the shareholders on Friday, March 1, 2013. (AP Photo/Nati Harnik)