What hijackers? There were non on the passenger lists to begin with: http://911review.org/Sept11Wiki/PassengerList.shtml

Oh my Cthulu! All this crap can be easily avoided if you just google these weird claims when you hear them. All the hijackers are on the actual manifests. We even know where they sat. CNN put out a list of people they had confirmed were on the flights. This wasn't anything official. I corrected Woozle on this like two hours ago. And I don't even study these things. I heard the claim, thought it sounded weird and googled it.