Ben S. Bernanke, chairman of the U.S. Federal Reserve, arrives to a Joint Economic Committee hearing in Washington, D.C., U.S., on Wednesday, May 22, 2013. Bernanke said the U.S. economy remains hampered by high unemployment and government spending cuts, and tightening policy too soon would endanger the recovery. Photographer: Andrew Harrer/Bloomberg *** Local Caption *** Ben S. Bernanke