Personally I would hope that they would have been intenytionally destroyed rather than topple over killing thousands more. (if that were going to happen.)
With that said, the explainations I've seen about the collapse seem right to me.
We know the CIA had offices in the WTC, not to mention the DoJ. We also know that buildings like FBI, CIA, DoD, DoJ main offices are wired in case of compromise.(If the information within is compromisecd by break-in calamity or disaster, the building can be brought down to preserve the intel)
What if building #7 housed the DoJ documents that pertained to ENRON among others, CIA or other government offices. What if the government determined the integrity of the intel was compromised and pulled the building... so what? It could have been wired months beforetime.
Not that I think this is what happened, I just mean so what if it was?
AND being that ENRON turned out to be a Clinton scandal, Clinton era intel was in the offices and Clinton operatives were on the 9/11 comission, why couldn't the MIHOP or LIHOP be laid at CLINTON'S door? They are the ones that would have had the time to plot it, plan it and enough socialist Clintonistas were still in high places within the government to carry it out.