Airmen upgrade 'giant voice' warning systems in England
Airfield systems technician Tech. Sgt. Jerry McDonald drills a hole to fit the new speaker stack for the giant voice upgrade March 7 at Royal Air Force Barford St. John, England. Sergeant McDonald along with eight other Airmen from the 1st Communications Maintenance Squadron at Kapaun Air Station, Germany, are upgrading the giant voice system in nine different locations throughout the United Kingdom. (U.S. Air Force photo/Tech. Sgt. Greg Bluethmann)