As dusk sweeps over the nation's capitol, members of the U.S. Air Force Air Force Band Ceremonial Brass play Christmas tunes for the Capitol Christmas Tree Lighting ceremony on the West Front Lawn Dec. 4, 2012. The 73-foot-tall Engelmann Spruce is from the White River National Forest in Meeker, Colo. (U.S. Air Force photo/Staff Sgt. Torey Griffith)