"It's all upside. There's no downside. Both ethically and normatively, there's a tremendous value," he says. "You're not risking the pilot. The pilot is safe. And all the empirical evidence shows that drones tend to be more accurate. We need to shift the burden of the argument to the other side. Why not do this? The positive reasons are overwhelming at this point. This is the future of all air warfare. At least for the US."