This:
"I think the eventual answer will be the unmanned cockpit. I’m not happy about it for a variety of reasons, but as drone- and spaceship-technology develops, we may conclude that total separation between plane and pilot is the safest way to ensure that travellers arrive at their destination in one piece. The magnificent men and women of the not-too-distant future will sit in concrete towers before elaborate screens, guiding their flying machines as if they were playing a computer game. There being no point in hijacking a plane they can’t fly, terrorists will have to think of something else.
Not to worry. They probably will."
George Jonas: How terrorism made tragic Germanwings crash possible | National Post