Brig. Gen. Paul Tibbets IV, 509th Bomb Wing commander, Whiteman Air Force Base, Mo., conducts pre-flight checks on Doc, a restored B-29 Superfortress, June 9, 2017, on McConnell Air Force Base, Kan. Tibbets' grandfather, retired Brig. Gen. Paul Tibbets Jr., piloted the 'Enola Gay,' during WWII and dropped the world's first atomic bomb used in warfare. (U.S. Air Force photo/Senior Airman Tara Fadenrecht)
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