A jumbo/747 whatever, flying into a heavily re-enforced building (they kinda thought people might try and blow up the Pentagon) at 200+ miles an hour full of fuel, aint gonna leave much debris!
As for the un burnt paper, first I've heard of it, probably blown that far out/up that it escaped the fire and was then blown back in, or never existed in the first place.
The one thing about all that 9/11 stuff that is true is that the SAS had Bin lala (Ladin) about 3 months after in Afghanistan and were told to stand down so Delta force could catch him.........guess who managed to loose him! The only thing the American Army is good at is killing people with "friendly fire!"
There was a similar story about the French special forces having him a few months ago as well.