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Robots are excellently used in subversive activities, even for non-military purposes. It doesn't matter if a robot is destroyed in an explosion. Computers on airplanes identify aerial targets; the pilot only needs to press a button. Otherwise, a lot of time would be lost, which is very precious in the air at speeds close to the speed of sound. So, what's the problem? FineReader on personal computers is an example from a completely different realm.