Another thing I haven't seen any reasonable explanation for is how the towers collapsed perfectly in their footprint. It's hard enough to get smaller buildings

Another thing I haven't seen any reasonable explanation for is how the towers collapsed perfectly in their footprint. It's hard enough to get smaller buildings to collapse perfectly in controlled demolition. Yet 2 towers that were among the tallest in the world both collapsed perfectly. With such tall towers they should have buckled unevenly at least a little bit, especially since the damage was off center.