Reply #18: The real reason

[Kevin Fenton]

First of all, tall buildings can fall sideways - you just have to place explosives asymetrically at the base:

This was actually what the 1993 WTC bombers were trying to do.

"I am very uncomfortable with the conjecture that a team of demo experts planted explosions in a building in which thousands of every day people worked without being noticed by somebody."
That's the real reason you don't believe the WTC was brought down by explosives, isn't it?

But how could the authorities be sure that there wouldn't be a repeat of the 1993 bombing (the bombers promised several times they would try again) and that the bombers would not be successful this time?