Federal Reserve Chairman Ben Bernanke (L) speaks as CEO of Sophisticated Systems Inc. Dwight Smith looks on during "Conversation on the Economy", a discussion with business leaders, at The Ohio State University in Columbus, Ohio November 30, 2010. Bernanke, whose efforts to spur U.S. economic growth are under fire internationally and at home, said extended high unemployment could exact a high social cost. REUTERS/Matt Sullivan (UNITED STATES - Tags: BUSINESS POLITICS)