Federal Reserve Chairman Ben Bernanke

November 19, 2010 - 12:14 PM
In this Sept. 30, 2010 file photo, Federal Reserve Chairman Ben Bernanke testifies on Capitol Hill Washington. Bernanke is seeking to defuse rising criticism of the Fed's $600 billion bond-purchase plan by arguing that it's needed to bolster the economy and reduce unemployment. But he warns the Fed's program can't succeed on its own. (AP Photo/Manuel Balce Ceneta, File)