MINOT AIR FORCE BASE, N.D. (AFPN) -- Second Lt. Stephen Grinage (left) and 1st Lt. Bill Dyer do a very low frequency key load for the minimum essential emergency communication network at the Oscar-01 missile alert facility. The completion of Oscar-01, on Nov. 11, marked the final modification to the last of 50 launch control centers. Lieutenants Grinage and Dyer are with the 742nd Missile Squadron. (U.S. Air Force photo by Staff Sgt. Carla Williams)
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