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This photo combo shows U.S. Rep. Gabrielle Giffords, D-Ariz. At left, Giffords takes part in a reenactment of her swearing-in on Capitol Hill in Washington, on Jan. 5, 2011, three days before she was shot as she met with constituents in Tucson, Ariz. At right, Giffords is seen May 17, 2011, at TIRR Memorial Hermann Hospital in Houston, the day after the launch of space shuttle Endeavour and the day before she had her cranioplasty. Giffords has been released from a Houston hospital, Wednesday, June 15, 2011, five months after being shot in the head during a Tucson political event. (AP Photo/Susan Walsh/P.K. Weis) MANDATORY CREDIT