Quadcopters buzzing French nuclear plants

http://www.bbc.com/news/world-europe-29844962

"Unmanned aircraft have been seen flying over many of France's nuclear stations and the authorities don't know where they have come from.
Greenpeace, who have previously flown a paraglider over a nuclear plant in France, deny any involvement."

I think with mine I could go about 1/2 mile line-of-sight with my Spektrum transmitter, so the pilot is probably in a vehicle in that vicinity.  It's worrying because they don't know who's doing it, but I suspect it's somebody making a movie about nuclear power.