Senior Airman James Wolfley, 436th Civil Engineer Squadron electrical power production journeyman, inserts a metal wire into an encasing for a ground automobile retractable barrier (GRAB) net, at Dover Air Force Base, Delaware, April 3, 2021. The power production team conducts monthly maintenance on the GRAB net to ensure it functions properly in case of an emergency at the main gate. (U.S. Air Force photo by Senior Airman Marco A. Gomez)
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