http://www.uwgb.edu/dutchs/pseudosc/911NutPhysics0.HTM
check out the 2nd picture. As the author says:
Figure 66(o). Why doesn't the paper burn?
- The fire hasn't reached it yet.
- Actually, there is a fire on the ground around the burning vehicle, so the paper nearest the fire is burning. But overall, there isn't enough paper to sustain a spreading fire. Anyone who's ever tried to keep a fire burning knows that it's very hard to keep a fire going from the sides or top. If the fire isn't under the combustible material, it's awfully hard to keep it going.
So how did the car catch on fire, but not the paper? The cars were set on fire first, probably by jet fuel from the plane crashes. The paper fell when the towers collapsed (you can see falling paper in many videos, and the paper in the tree branches is pretty informative).
Oh, by the way, all that paper pretty much demolishes the idea that passports and other personal effects couldn't have survived.
There you have it. Real photographic evidence showing you that its not only possible that passports and other paper documents can survive that crash, but they did, I see them right there.