sorry, I didn't mean to sound smug.The problem is that the only theory that explains the collapse of wtc7 is also the only one that the official commissions etc refuse to investigate. They still have no explanation. They have provided distortions and lies to cover many of the contentious 911 issues but wtc7 is a bullet they can't avoid! It is a physical impossibility for it to have collapsed as it did without the use of explosives. I'm sorry but this is a fact.