Air Force Chief Master Sgt. Jason Shaffer, 56th Fighter Wing Command Chief, rings a bell during the 9/11 Tower Challenge, Sept. 9, 2022, at the Gila River Arena, Glendale, Arizona. Participants rang the bell upon climbing 2,071 steps, which represented the 110 floors of the World Trade Center that first responders climbed during the terrorist attacks that occurred Sept. 11, 2001.

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Photo credit: © Operation 2022 / Alamy / Afripics
License: Licensed
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