Just a quick thought.
Aren't these UAVs being piloted by flight crew?
There was something on another thread, think it was about the Hellfire missile taking out the 3 Al Quaida suspects in Yemen, that stated that flight crew were being employed for the task.
An argument for the other side of the coin is that the escape shuttle being planned for the International Space Station is to be completely automated and I understand that the present Shuttle can be recovered automatically. Its only that the pilots on board want to feel useful that they manually land the thing (with all of the electronics up and running).