I'll never understand why 911 truthers always insist on using a mystery to explain away another mystery. In this case, the mystery explanation is a government conspiracy to explain away 911. Our entire history and progress is based on having mysteries explained by the application of the scientific method. This is the difference between diagnosing disease via bacteriology as opposed to blaming it on evil spirits.
I'm no scientist, but "Debunking 9/11 Myths" edited by David Dunbar & Brad Reagan states, "In addition, NIST estimated that it would take .13 pounds of thermite to heat a pound of a steel section to the necessary weakening point--which would require literally tons of thermite to cause the extensive column damage that Flight 175 wrought in WTC 2. That again brings up the challenges of wiring the tower clandestinely. As NIST described it, 'Many thousands of pounds of thermite would need to have been placed inconspicuously ahead of time, remotely ignited, and somehow held in direct contact with the surface of hundreds of massive structural components to weaken the building. This makes it an unliely substance for achieving a controlled demolition.'"
This is a task that would have required huge amounts of manpower. No one has ever explained how the government (headed by Dubya, no less

) has been able to keep the hundreds of people (thousands including those who worked in the towers & might see something) quiet while they planted these explosives.
Particularly since 5 years earlier, the government couldn't even keep the fact that Clinton got a hummer from his aide from getting out. Lmao.