That's it from Metabunk.
But here is some investigative journalism on the same topic: As the application of the super-thermite must have occurred during the months prior to 9-11, I have used FOIA and other means to try to find who could have been doing such work in the towers during 2000-2001. There was one significant clue at the very beginning. Two days after 9-11, Engineering News-Record (ENR) reported that an asbestos abatement and demolition company called LVI had done extensive asbestos abatement work in the World Trade Center:
AMEC Inc., Turner Corp. and Bovis Lend Lease were set to assume "lead roles" in the cleanup effort, says Lee Benish, AMEC vice president. "From the very beginning, we've been deeply involved with the city department of emergency services," he says. "They're sorting through who will be doing what." LVI Services Inc., New York City, which has done extensive asbestos abatement work on the towers in the past, is involved in similar work now as well as other cleanup efforts.
LVI was immediately a suspect because it does a great deal of pre-demolition work in which it prepares buildings for demolition. LVI has done several large demolition jobs with Controlled Demolition, Inc. of Maryland.
Partin concluded: “The Murrah Federal Building was not destroyed by one sole truck bomb. The major factor in its destruction appears to have been detonation of explosives carefully placed at four critical junctures on supporting columns within the building. The only possible reinforced concrete structural failure solely attributable to the truck bomb was the stripping out of the ceilings of the first and second floors in the ‘pit’ area behind columns B4 and B5. Even this may have been caused by a demolition charge at column B3. It is truly unfortunate that a separate and independent bomb damage loads of debris were hauled away, smashed down, and covered with dirt behind a security fence . . . All ambiguity with respect to the use of supplementing demolition charges and the type of truck used could be quickly resolved if the FBI were required to release the surveillance camera coverage of this terribly tragic event.” (www.whatreallyhappened.com/RANCHO/POLITICS/OK/PARTIN/ok2.htm)
Soon after the explosion, Controlled Demolition Inc. was called in to destroy those parts of the building which had remained standing, and to speedily dispose of all the rubble of the building.
This, of course, prefigures the blatant tampering with a crime scene which became the hallmark of Mayor Giuliani’s approach to the World Trade Center, again using CDI.
(Tarpley, Webster Griffin (2012-04-12). 9/11 Synthetic Terror)