(Part2)Why didn't the building fall toward the damaged side. It is impossible for the fires to have equally weakened the whole structure simultaneously. WTC 7 was built so that every second floor could be removed to accommodate tenants needs if required. I am saying the building was stronger than most normal buildings.  What ever happened to the sprinkler systems in these buildings?  and what was burning in WTC 7? paper in file cabinets? Try burning a phone book.. it won't go very well!.