DJI's scanner can nab info on drones mid-flight

This morning, Chinese drone company DJI demonstrated its new AeroScope device that can track UAVs in a 5-kilometer radius. At the moment, it can only monitor the company's drones, but it's a potentially potent tool for law enforcement (or other DJI-authorized customers) to keep an eye on aerial activity within their radius. The AeroScope tracks drones via the radio transmission between them and their remote control. This gives the device everything it needs to know, from the UAV's location and speed to its registration or serial number, and even where it took off -- and its operator's position. DJI preempted questions about the AeroScope in a series of tweets, assuring that it couldn't take control of a drone, receive videos or photos from it or automatically transmit personally identifiable information.