Partly because of the paralysis and partly because of the sellout in Congress, laws governing the use of technology in law enforcement have fallen way behind. My knee-jerk reaction is to say "no weaponized UAVs within our borders", but that's just not realistic. LE won't just standby while bad guys weaponize theirs, nor should they. But so far we haven't even gotten control of handheld Tasers. Instead of being used in place of deadly force, they're being used in place of physical restraint or even passive noncompliance, as if they never result in injury or death, which they most certainly occasionally do. I'd say a starting point would be to create federal legislation specifying when Tasers can be used, and it should be pretty restrictive. Then that can be extended to included remote-controlled vehicles. Will such laws preclude the unwanted use of weapons on drones? Of course not. But those doing so may be caught, fired, and prosecuted.