A VH-3D Sea King from Marine Helicopter Squadron One waits for Air Force One to take off before returning back to Marine Corps Air Facility Quantico, April 15, 2010, at Joint Base Andrews, Md. President Obama left for the Kennedy Space Center in Cape Canaveral, Fla., to announce his new space program. (U.S. Air Force photo by Airman 1st Class Perry Aston) (Released)