Back during the 9/11 controversy, one Hollywood twit scoffed at the idea that fire could melt steel. I thought of that when I saw the live video from the Daytona 500, where burning jet fuel ate through steel. Even though fire crews were there in a matter of seconds, the extreme heat did this kind of damage.
Imagine a similar jet fuel fire with no suppressing foam, no water to douse it, eating away at the structural integrity of the WTC.
I don't know if actual evidence can persuade the conspiracy theorists, but as Mulder and Scully said, The Truth is out there.
For reference, here is a picture of the jet dryer truck with it's steel metal boxes intact.
Update: It was pointed out by a commenter that this plating was aluminum instead of steel. When I first saw the video and the stills of what appeared to me to be chrome plated steel, I took this to be an example of "fire melting steel". I contacted a manufacturer of similar trucks who told me they indeed use aluminum over steel. I drew my conclusions based on observation and my experience with diamond plate steel in the past. I made an honest mistake based on not unreasonable assumptions.
Cross posted at Proof Positive