How on earth can war ever be 'fair'?!! The latest murder of a Chinese and a Norwegian man isn't 'fair'. The subjugation and murder of the Yazidi people isn't 'fair'. Nothing in war is 'fair'. You fight it with every weapon you can muster, being fair doesn't come into it, either you're doing it or you're not doing it, there is no half way house. Using drones means that you don't risk losing aircrew if they are shot down as you risk doing with conventional bombers, and as the whole idea is keep service personal as safe as possible on these missions from these murdering maniacs, it would make sense to use drones.