What, you think if a plane hits the top of a building, it should damage the foundation? Are you a total !@#$ing idiot?
What research have you done? You've seen a couple of amateur videos posted on the internet. Have you visited lower Manhattan or the Pentagon? Have you spoken to any eyewitnesses? Have you seen the results of the metallurgical analysis on the steel from the World Trade Centers that show tensile and fatigure failure completely inconsistent with any explosives?
Hell, for that matter, just tell me if, in all your research, you've discovered what happened to the passengers and crew of American 77 - the airplane that you claim I didn't see hit the Pentagon. Did United just lose a plane somewhere and no one found it? Did a hundred-plus people go into Witness Protection?
I'm flaming you? I saw the plane hit the Pentagon with my own eyes!!! For some of us, that day wasn't the mindless entertainment of conspiracy theories...we had to live through it.