UAVs have been around for some time. They were originally and are still used primarily as "Spy Planes". Since being outfitted with missiles, these remote controlled aircraft have been nicknamed "Killer Drones" by the popular media. (I've seen these things in about four movies this last year)

Oddly enough, in order to use the missiles on any target it takes approval from generals and oftentimes, the president himself (good luck after January, America).

Given that, the handgun on a toy helicopter is both unimpressive and overwhelmingly terrifying to consider as it appears most anyone can use or misuse it.

I guess DaVinci doesn't rate. I would imagine once a movie is made to besmirch an artist, his accomplishments throughout history are meaningless.