High Jackings in the Sixties and Seventies

Word may have reached the passengers causing them to realize just how much danger they were in. They already know that they'd been hi because before nine 11, nobody had used a plane as a weapon. There had been a wave of high jackings in the 19 sixties and seventies,. And since the hijackers never tried to crash planes into things, the standard advice at the time was to sit back and comply with their demands.