Emerging threat Intelligence analyst B. Joshua Bauer discusses terrorists' use of commercially available unmanned aircraft with U.S. and Belgian explosive ordnance disposal teams during the Raven's Challenge exercise at Camp Pendleton, Calif., Aug. 1, 2017. DoD photo by EJ Hersom SHARE IMAGE: Download Image: Full Size (0.88 MB) Photo By: EJ Hersom VIRIN: 170801-D-DB155-014.JPG Photo Gallery