Former U.S. Federal Reserve Chairman Alan Greenspan (L) watches current Federal Reserve Chairman Ben Bernanke speak at a cocktail reception held in honour of an international economy magazine's 20th ... more 
Former U.S. Federal Reserve Chairman Alan Greenspan (L) watches current Federal Reserve Chairman Ben Bernanke speak at a cocktail reception held in honour of an international economy magazine's 20th anniversary in Washington in this October 18, 2007 file photo. To match Special Report USA-QE3/PIMCO REUTERS/Jason Reed/Files (UNITED STATES - Tags: BUSINESS) less 
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Reuters | Photo By JASON REED / Reuters
Fri, Sep 27, 2013 6:04 AM EDT