Security Sidebar: How To Kill A Drone

Saw this in a technical article and here: http://www.telegraph.co.uk/technology/news/11920094/Death-ray-can-take-out-airborne-drones-from-up-to-five-miles-away.html The British are using a high powered transmitter to Jam drones. I imagine a high power RF source in the drones operating frequency (Often 2.4 GHz) connected to a high gain antenna would overwhelm the front end of the drone's radio, causing the operator to lose control, sort of a DOS attack. The FCC frowns on this sort of thing. Cell Phone jammers are illegal in the US.