U.S. Marine Corps STAFF SGT. Rodney Guthrie, Air Traffic Controller with the 13th Marine Expeditionary Unit, checks a PRK 19 radio during Operation Desert Talon 1-05 at the Stoval Training Ground, Marine Corps Air Station, Yuma, Ariz. on Dec. 8, 2004.(U.S. Marine Corps official photo by CPL. Alicia M. Garcia) (Released)