** FILE ** Social Security Administration Commissioner Michael J. Astrue speaks at a news conference on the Social Security and Medicare trustees report at the Treasury Department in Washington on Aug. 5, 2010. (AP Photo/Charles Dharapak)
** FILE ** Treasury Secretary Timothy Geithner speaks at the Financial Stability Council meeting on the one-year anniversary of the Dodd-Frank Reform and Consumer Protection Act, Monday, July 18, 2011, at the Treasury Department in Washington. (AP Photo/Susan Walsh)
WORKING TOGETHER: Treasury Secretary Timothy F. Geithner and Chinese Vice Premier Wang Qishan wait as documents are exchanged during a signing ceremony on Tuesday in the Cash Room of the Treasury Department in Washington during the U.S.-China Strategic and Economic Dialogue meetings. (Associated Press)