Were you there?
Have you EVER watched a breaking news story unfold on TV? Ever sat in front of a newswire as breaking news is unfolding? I have, because I've worked in the newsrooms of both a news channel and a wire service. The initial information is almost always WRONG. On a story the size of 9/11, the true story is refined slowly over a period of days or weeks, as the crap is sorted out from the facts. (Or do you really believe the State Department was bombed on 9/11 too? After all, it was reported!!!)
In short, the story from "several weeks later" is always more reliable than the "so-and-so said that..." pseudoreporting and tinfoil BS that's tossed around as the events are actually occurring, when nobody has the time of manpower to track down what's truth and what's merely empty rumormongering.
And again, for the 50,000th time, it's establish fact that Bush gave the go-ahead to shoot down any planes that appeared to be hijacked. And he had a 90% approval rating anyway. It's beyond obvious that the public was more than ready to accept having a passenger jet shot down. So what's the point of lying about it?!?!!?!? Why are people seeing conspiracies when every person in the nation is IN ON IT?!!??!