Quoting russell@coker.com.au (russell@coker.com.au):
But I don't think the CIA had the idea of using a heavy passenger jet as a missile.
On the other hand, the writers of the March 2001 pilot episode of 'The Lone Gunmen' did. (This was just a spooky coincidence, but really bothered the writers until that fact was proven.) https://www.scpr.org/news/2015/03/24/50548/the-x-files-mulder-and-scully-wil... Another odd fact: My father, Pan American World Airways Captain Arthur Moen, kept advising his employer and the Federal Aviation Administration in the 1960s that they could put a screeching halt to airline hijackings by simply reinforcing the door to the flight deck. They never did - until the 2000s. (Dad himself never lived to see them taking his advice, having been killed by a defective B-707 in 1968.)