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Members from the 433rd Civil Engineer Squadron participate in a 9/11 memorial stair climb at Joint Base San Antonio-Lackland, Texas, Sept. 11, 2022. The 433rd CES performs a stair climb every year to commemorate the 110 flights of stairs first responders had to climb inside the World Trade Center on Sept. 11, 2001. (U.S. Air Force photo by Staff Sgt. Adriana Barrientos)
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