At last we have response to DJI irritating Phantom drone (I don't mean to be offencive, but it become kinda symbol of human dumbness, with all this drones crashing on official roofs and lawns. But that's another story...)
I've been in copter use/testing for a long time (paparazzi, open pilot, dji, some multiwii clones own developed, px4, apm) and I have my own minor understanding of what is going on.