20/20 S2011E03 - The Congresswoman and the Astronaut

In his first interview since the tragic shootings at the Safeway in Tucson, Arizona, Capt. Mark Kelly sits down one-on-one with Diane Sawyer to offer an intimate portrait of a modern American love story, and to talk about a great national tragedy and finding the strength to heal. Their emotional conversation took place one week after the tragic shooting.