This makes me think that the security forces of the world must be getting more than a little nervous. The state no longer possesses air supremacy.
As Carroll Quigley noted, the power of the aristocracy over the masses has historically depended upon how great the divide between state and individual military power is. Once someone figures out how to turn these little RC planes with speeds of up to 130 kph and 27-mile range into delivery systems, pretty much all bets are off. And there’s no reason they can’t be effectively turned into cheap drones without too much trouble.
I suppose the obvious countermeasure is adding laser turrets to all the closed-circuit cameras. But it’s not hard to see the recon-related possibilities here either.