Coast Guard and Philadelphia police and fire department personnel hold an active-shooter response exercise at Coast Guard Sector Delaware Bay in Philadelphia Wednesday, April 16, 2014. The exercise involved a simulated active shooter, takedown and building sweep followed by training for first responders.
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PHILADELPHIA, PA, US
This work, Philadelphia Active Shooter Exercise, by CPO Nick Ameen, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.