The crew of space shuttle Atlantis speaks with the media as the shuttle (R) rolls out to the launch pad for the final flight of the space shuttle program at the Kennedy Space Center in Cape Canaveral, Florida May 31, 2011. From left are mission commander Chris Ferguson, Pilot Doug Hurley, Mission Specialist Sandy Magnus and Mission Specialist Rex Waldman. Launch of Atlantis on Mission STS-135 is scheduled for July 8. [Photo/Agencies]