[worth]

Also, I know i'm a page behind but I will add my resistance to the controlled demo theory. When tower 2 falls (the second tower hit, and the first tower to come down) you can clearly see the top of the building fall over. It doesn't fall straight down, and the building doesn't come out from the bottom from what we can tell.

The top section above where the plane has impacted begins to collapse and falls on top of the lower stories. It's plain as day. The bottom stories don't seem to move until the upper floors begin to impact.

All I can deduce from this is that a plane drove through the building, basically severing it in half, the contents of the building burned for an hour weakening the integrity of the already perilous structure which caused the top half of the building to fall over, crushing the rest of the building on it's way down.

Someone please correct me if I have any wrong information here.