What is the credible evidence that any planes were hijacked by anyone? The major problem in the official account is that, although we are told that four or five of the alleged hijackers were on each of the four flights, no proof of this claim has been provided. The story, of course, is that they did not force their way onto the planes but were regular, ticketed passengers. If so, their names should be on the flight manifests. But the flight manifests that have been released contain neither the names of the alleged hijackers nor any other Arab names.