3. A Controlled Demolition
If you have ever led a science textbook, it would very hard for you to believe the NIST report on the WTC attack. The NIST report had indicated that the diesel fuel storage together with the jet fuel heat were responsible for the softening expansion of the structural members causing a toppling effect. The footage showing the actual collapse of the tower is a different thing from the above story and this is why we have had various 9/11 conspiracy theories about the whole story about the WTC attack.