Problem with drones, is they don't have human eyes and reactions on the spot. Someone watching a tv screen from a camera might not get all the information to process properly. A pilot can see, process and determine what needs to be done, whether to fire or not. Someone setting at a desk watching a tv screen might make the wrong decision, and like someone said, press a fire button. The good intentions were to watch the border for illegals, and follow a get-a-way car somewhere. It can also seen anyone else doing anything.