91st MMOC maintains 24 hour surveillance
An Airman with the 91st Missile Maintenance Operations Center checks a performance assessment data system at Minot Air Force Base, N.D., Jan. 24, 2017. Airmen in the MMOC are responsible for assessing the operations of maintenance teams that are at missile sites. (U.S. Air Force photo/Airman 1st Class Jonathan McElderry)

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Photo by: Airman 1st Class Jonathan McElderry |  VIRIN: 170124-F-IY281-0079.JPG