There are a plethora of conspiracy theories out there.
Showing Bush babbling about things and stumbling through speeches is common. He was a puppet president so it's expected.
I happen to be watching tv that morning when they broke to show the 911 events unfolding.
The 2nd plane hitting, people jumping out of the towers, the witnesses that saw jets shoot down the penn plane, and a truck exploding at the pentagon.
Some of this stuff I just said sounds wrong according to current accounts, but it was on television that morning. I was flipping between NBC, MSNBC, and CNN.
Within 24hrs we had the names of the hijackers and the name of the mastermind (Bin Laden) behind the events.

There are plenty of good websites, videos, and books available about 911.
However, it's just going to be another conspiracy theory like the moon landings and kennedy assassination.
Something wasn't right that day, but we'll probably never know what it was in our lifetimes.