The time it took for investigations to start:
Sinking of the Titanic - 6 days
JFK Assassination - 7 days
The Challenger Disaster - 7 days
Pearl Harbor Attack - 9 days
The Events of 9/11 - 441 days
There are many reasons why I doubt the official 9/11 story but two stand out: The fact that our skies were not defended that day and the fact that Bush had to be pressured to have an investigation. If he had really been interested in protecting us, he would have been eager to have an investigation; he would have insisted on it immediately.