Just to be fair the clip is dated 1/25/01, that is before people knew how hot jet fuel fires could be.
Still it does not account for the way it collapsed or the fact that the internal support beams collapsed and appear to have been cut or the residue of Thermite that was found there.
My fathers uncle was an engineer. He helped design some very famous, iconic structures in this country. He was also bat-shit insane and thought that Franklin Roosevelt knew about the December 7th 1941 attack at Pearl Harbor in advance and let it happen. He was so convinced of it that whenever he was in a store and got a Roosevelt dime with his change he would curse the cashier and throw them on the floor.
You do realise that your bat shit crazy uncle was right don't you? That has been known and verified for decades. Not only did roosevelt know about it, he provoked it Maybe you should go do a little more research into all of this and be ready to have your world rocked a little. It is really simple, just google "Roosevelt and Pearl Harbor" and start reading.