A firefighting ship sprays water into the air as USS Constitution, the oldest commissioned ship in the U.S. Navy, sails past Castle Island carrying 70 Medal of Honor recipients during a turnaround cruise in Boston Harbor, Mass., Sept. 30, 2006. DoD photo by Janice Abate.

A U.S. Air Force F-15C Eagle aircraft, top, from the 12th Fighter Squadron, Elmendorf Air Force Base, intercepts a Russian Tu-95 Bear bomber Sept. 28, 2006, during a Russian military exercise near the western coast of Alaska. The North American Aerospace Defense Command launched three pairs of fighters to detect, intercept, and identify the aircraft during a planned response to the exercise. DoD photo courtesy of U.S. Air Force.