Targeted killings don’t work, they only “help” replace some leaders with other (often times even more radical) people. This is not just an issue of “maybe we will get better at killing people up from the air soon” because the US has been at this game for almost 20 years now and we are still having the same conversation. War has been and it will always be about politics (meaning how people live and interact with each other, even with their enemies) no technological “breakthrough” is going to change that.