population control obvious, well just to keep you safe ...err right?
still its full of nice spots where you can stop it so not worried that much, but it very interesting indeed.
just keep them autonomous or let people require a pilots license.
I thought obtaining driver's license was supposed to be a proof that a person is qualified to drive. As we all know, that doesn't really work...Do you think it would be any different with pilot's license? I will agree with autonomous flying vehicles.