A U.S. Navy MH-53E Sea Dragon helicopter sits on the flight deck of Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) as the ship arrives off the coast of Port-au-Prince, Haiti, Jan. 15, 2010. Carl Vinson and Carrier Air Wing 17 are conducting humanitarian and disaster relief operations after a 7.0-magnitude earthquake caused severe damage near Port-au-Prince Jan. 12, 2010.