Associated Press
Federal Reserve Chairman Ben Bernanke is seen on a monitor on the floor of the New York Stock Exchange Tuesday, Feb. 26, 2013. The Federal Reserve's low interest-rate policies are giving key support to an economy still burdened by high unemployment,  Bernanke told Congress on Tuesday. Bernanke signaled that the Fed's efforts to keep borrowing costs low will continue. (AP Photo/Richard Drew)

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