Cheap drones shift warfare and strain U.S. defenses
AFP via Getty Images and U.S. Air Force/Collage by Emily Bogle/NPR Wladimir van Wilgenburg stands in a residential neighborhood in Erbil, in the Kurdistan region of Iraq, and points out incoming drones high in the sky. "The U.S. defense systems, as you can see, are taking down the drones," he says in a video recorded