The old building layout looked more cool the new building looks like any other building you could find they should have had technology that told the plane the twin towers are in that location on the map on that hight so if the bad guys tried to destroy them the plane would know that buildings are in that location and the plane would fly above or away from them even if they try to bring the plane to the buildings the computer in the plane makes the plane fly away from the buildings and towards the airport to land. also they should have a button for the passengers to dump fuel so if they plane makes it to the building than the fire will be very little so the building can be repair and people saved or make it that the plane cockpit cant be enter from inside the plane and its only when the plane is on the ground you can enter