Lol, twins towers collapsing is abit strange, but the pentagon was deffinatly NOT hit by a passenger plane It says about the passenger plane having 4, 6 tonne engines built from ti and steel, both of which will not just vapourize because of a little bit of heat from the fire, takes alot more heat to vaporize steel and Ti. Also, that hole it left behind, a plane wouldn't have made that since the front end was made of carbon fibre and would have just shattered on impact. It also said about a guy being thrown 100 foot backwards, only a shock wave from a rocket/ bomb would be able to cause that. This is going to be a neverending thing now lol, arguments all around haha