...why the government freaked out when a $400 remote-controlled quadcopter landed on the White House grounds last week, you need to look four miles away, to a small briefing room in Arlington, Virginia. There, just 10 days earlier, officials from the US military, the Department of Homeland Security, and the FAA gathered for a DHS “summit” on a danger that had been consuming them privately for years: the potential use of hobbyist drones as weapons of terror or assassination.
The conference was open to civilians, but explicitly closed to the press. One attendee described it as an eye-opener. The officials played videos of low-cost drones firing semi-automatic weapons, revealed that Syrian rebels are importing consumer-grade drones to launch attacks, and flashed photos from an exercise that pitted $5,000 worth of drones against a convoy of armored vehicles
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