TYNDALL AIR FORCE BASE, Fla - U.S. Rep. Gwen Graham of Florida greets Lt. Gen. William Etter, Continental U.S. Aerospace Defense Region Commander, upon her arrival at the 601st Air Operations Center Jan. 23. During her visit there, the congresswoman received a mission briefing and toured the operations floor where day-to-day air-defense operations occur around the clock 365 days a year. (U.S. Air Force photo by Mary McHale/Released)