This is the heart to uncovering the deception of the US government's official explanation of 9/11.
What really happened?
Premise:
9/11 was a US Government inside job. It had to be, and this is why:
Predicates:
i) WTC7 is an OBVIOUS controlled demolition [CD] to anyone who views its collapse.
ii) CD's take at least a minimum 2 weeks to prepare.
iii) WTC7 had high-level security, it being practically a government facility.
iv) No reports were ever made of any witnessing of any preparations for a CD.
Conclusion:
Therefore, security on the building must have been changed to allow for this preparation, and this could only have occurred with government complicity.