I never really investigated it, Im supposing a skyscraper like the twin towers would have burned out first and not collapsed so suddenly and neatly, though nobody ever questions what, if anything, was hidden inside the twin towers that they were trying to destroy.
aside from. people which it seemed was collataral damage. Nobody seems to talk about it. It was no accident. If it was just people and trying to attack americans, and make a war, they would have done it far more randomly and generally with bombs.
Those that did question it were labeled as, you guessed it, "conspiracy theorists" and big media took care of the rest