That's a good example of the scope of the project. It cost a fantastic amount of money and incidentally employed a lot of people. But we did to beat the russians. I don't think we have a compelling reason to spend trillions of dollars to get rid of 100,000 airline pilots in short order. Eventually the natural progression of technology will enable unmanned airliners, but don't think anyone is going to pay a premium to rush that technology along. Nobody benefits but the airlines, and they can't see any further ahead than their next earnings call. No airline manager is going spend ludicrous amounts of money on something that is not going to pay off during his own tenure.