Clockwise from top, Pope Benedict XVI arrives at Andrews Air Force Base in Maryland, just outside of Washington, April 15, as he began his first visit as pope to the United States. Military families gather at Andrews Air Force Base in Maryland as they await the arrival of Pope Benedict XVI to the U.S. The family is from Ladysmith, Va. Chelsie Smith, a senior at Bishop McNamara H.S., Forestville, Md., cheers as she awaits the pontiff.