Rusty Schweickart

Sometimes you see films, not just science fiction films, where you get the sense that if the camera were to pan just to the left or the right, all of a sudden you'd be seeing light stands and crew standing around. But with 'Blade Runner,' the beauty of it is that it felt like a real, breathing city.

My message going forward is that I want to remind everyone in the aviation industry - especially those who manage aviation companies and those who regulate aviation - that we owe it to our passengers to keep learning how to do it better.