If you want to know the future of drones in military use, all you need to do is read up on the beginnings of arial warfare in WW1. In the beginning, pilots flew over enemy territory unarmed, and waved to pilots of the opposite side as they passed them. Then some bright bulb had the idea of taking a pistol into the air and shooting bullets at other pilots as he passed them. Then they started taking up a second man in their biplanes and triplanes, who had a rifle, and who shot more accurately at the pilots of other planes. At first these planes were used only for reconnaissance, by sight and with cameras, but later pilots started to carry little bombs with them which they threw out over the side of their planes by hand as they flew over enemy positions. Naturally, this caused the men on the ground to start shooting at them when they flew near. Very quickly planes progressed to carry machine guns that fired bullets between the gaps in the propellers, so the pilot could shoot down enemy planes, or murder soldiers and civilians on the ground. Then they were fitted with bomb-release mechanisms so that larger bombs could be dropped from under the planes. All this happened within the space of a year or so. That is the future of drones in a nutshell. Right now, all they do is take video. At least, the ones that the military is showing to us. But they aren't going to stop there, not by a long shot.