Originally Posted by Fly IFR

I had no idea. That's terrible, however if you read the book flying blind there was one good screener (he is a customs and border protection inspector so I guess this is sort of out of the category) named Jose Melendez-Perez who actually stopped the 20th hijacker. Because of this there were only 4 hijackers on flight 93 and this may have been because Melendez-Perez stopped this man and they didnt have the muscle to fully overtake 93 from the passengers. However, he was a US customs agent, thus he was highly trained and educated. It's too bad this man doesn't get the credit that he truly deserves. I leave you with a short story of what happened and what this underappreciated man did.

A Saudi national on a Virgin Atlantic flight landed in Orlando. Since the subject's forms were not properly filled out, he was moved to a secondary interview, conducted by Perez. The Saudi did not have a return ticket or a hotel. He had $2,800 in cash and no credit cards. Questions to where he would stay and where he would go were evasive. Besides being quite hostile, the Saudi also made contradictory statements regarding his plans.
Perez decided to have him sent back, over his colleagues objections who said, "You can't do this. This guy is an Arab ethnic. You're racially profiling. You're going to get in real trouble, because it's against Department of Transportation policy to racially profile." Perez said, "I don't care. This guy's a bad guy. I can see it in his eyes." As he sent the Saudi back out of the United States, the man turned around to him and said, "I'll be back."
The Saudi was later captured in Afghanistan and is currently in Guantanamo.