Something Vaguely Menacing Happened...
One of the fundamentals of conspiracy theory logic, if you can call it that, is that you make vaguely menacing statements, without ever explaining what it actually means. A perfect example of this is exciting the Truthers over on 911 Blogger with an article arguing that many of the pilots and passengers on the doomed 9/11 flights were last minute replacements.
New Evidence Reveals Half of Pilots Were Only Assigned to 9/11 Flights at the Last Minute
Thomas McGuinness, the co-pilot of American Airlines Flight 11 before it became the first plane to be hijacked in the 9/11 attacks, only assigned himself to be on the flight the afternoon before September 11, 2001, and pushed from it the original co-pilot, who had put his name down for the flight less than half an hour earlier. This new information means that, curiously, half of the pilots and co-pilots originally at the controls of the four aircraft involved in the attacks are now known to have been assigned to the doomed flights at the last minute, very shortly before September 11. Additionally, more than half of the flight attendants and many of the passengers are known to have, similarly, not originally been booked onto those flights.
The details of McGuinness's late assignment to Flight 11 were revealed recently by Steve Scheibner, who was originally going to be the plane's co-pilot. In a short film released on the Internet just before the 10th anniversary of 9/11, Scheibner described how McGuinness came to replace him on Flight 11 and thereby saved his life.
Of course, despite the fact that the truthers are going crazy over this "evidence", it is the only recent post with more than a handful of comments, there is no explanation as to what this actually means, just that it is "bizarre".
What, though, is the reason for the bizarre and inexplicable finding that so many crew members and passengers on Flights 11, 175, 77, and 93 on September 11 were not originally supposed to be on those flights? An unrestrained new investigation of 9/11 needs to examine this matter thoroughly. The official account of 9/11 cannot explain this oddity. The answers investigators find could therefore fundamentally change our understanding of what exactly happened during the terrorist attacks.
Of course just because it may be slightly unusual, means nothing. If, as the Truthers like David Ray Griffin have been arguing for years, the phone calls were faked, wouldn't a bunch of last minute changes make things even more difficult for the alleged conspirators, not easier? There is no logical connection to any sort of conspiracy, but that certainly won't stop them from vaguely asserting them.