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Maj. Gen. C. McCauley von Hoffman, director of Logistics, Civil Engineering, Force Protection and Nuclear Integration, Headquarters Air Force Materiel Command, poses a question to Martin Johnson, civil engineering electrical asset manager, about the electrical grid during her visit to Arnold Air Force Base, Tennessee, Dec. 1, 2022. Arnold AFB is headquarters to Arnold Engineering Development Complex. Also pictured is Col. Randel Gordon, commander of AEDC. (U.S. Air Force photo by Jill Pickett) (This image has been altered by obscuring a badge for security purposes.)
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