WASHINGTON, DC - JUNE 05:  Warren Buffett, chairman and CEO of Berkshire Hathaway Inc. participates in a discussion during the 25th anniversary celebration dinner of the Economic Club of Washington June 5, 2012 in Washington, DC. The Economic Club celebrated its 25th anniversary for its role as a forum for the exploration of national and global public policy issues and as important networking connections for business leaders in Washington.  (Photo by Alex Wong/Getty Images)