Former Arizona Rep. Gabrielle Giffords listens as her husband, retired astronaut Mark Kelly speaks on Capitol Hill, in Washington, Tuesday, April 16, 2013, during a ceremony to honor G

 

              Former Arizona Rep. Gabrielle Giffords listens as her husband, retired astronaut Mark Kelly speaks on Capitol Hill, in Washington, Tuesday,  April 16, 2013, during a ceremony to honor G
Former Arizona Rep. Gabrielle Giffords listens as her husband, retired astronaut Mark Kelly speaks on Capitol Hill, in Washington, Tuesday, April 16, 2013, during a ceremony to honor Gabriel "Gabe" Zimmerman. Zimmerman was Giffords' outreach director until he was killed in the January 2011 shooting rampage in Tucson where Giffords was wounded. House Speaker John Boehner of Ohio is at left, Vice President Joe Biden is at right. (AP Photo/Jose Luis Magana)