FILE - This Feb. 2, 2012 file photo shows then Treasury Secretary Timothy Geithner during a news conference at the Treasury Department in Washington.  The former U.S. Treasury Secretary is joining private equity firm Warburg Pincus LLC. The firm announced Saturday, Nov. 16, 2013,  that Geithner will serve as president and managing director of the firm starting March 1, 2014. Geithner played a central role in devising the U.S. government's response to the financial crisis of 2008-2009. (AP Photo/Carolyn Kaster, file)