PHILADELPHIA, PA - JULY 18: In this photo illustration, Treasury employee Linda Tarkenton of Philadelphia, Pennsylvania holds a blank U.S. Treasury check before it's run through a printer at the U.S. Treasury printing facility July 18, 2011 in Philadelphia, Pennsylvania. U.S. President Barack Obama recently stated that he can't guarantee retirees will receive their Social Security checks in August if the House and Senate can not reach an agreement on reducing the deficit. (Photo by William Thomas Cain/Getty Images)
