FILE - In this Aug 5, 2012 file photo Social Security Administration Commissioner Michael J. Astrue speaks at a news conference on the Social Security and Medicare Trustees report at

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FILE - In this Aug 5, 2012 file photo 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. Astrue says he will step down in February after completing his six-year term. (AP Photo/Charles Dharapak) less 

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Associated Press
Tue, Jan 29, 2013 12:11 AM EST