NFPA 921 (2001 Edition)
18.3.2 - “High-Order Damage. High-order damage is characterized by shattering of the structure, producing small, pulverized debris. Walls, roofs, and structural members are splintered or shattered, with the building completely demolished. Debris is thrown great distances, possibly hundreds of feet. High-order damage is the result of rapid rates of pressure rise.”
We see all signs of “high-order damage” in all three building collapses. There is no arguing this. And, it’s very clearly stated “high-order damage is the result of rapid rates of pressure rise.”
Now if we look at NFPA 921 14.3 “Preservation of the Fire Scene and Physical Evidence” we find the following “the cause of a fire or explosion is not known until near the end of the investigation. Therefore, the evidentiary or interpretative value of various pieces of physical evidence observed at the scene may not be known until, at, or near the end of the fire scene examination, or until the end of the complete investigation. As a result, the entire fire scene should be considered physical evidence and should be protected and preserved.”
It doesn’t get much clearer than this. This is Investigation-101! For, all those debunkers and detractors who say “it’s obvious” why the buildings came down, I beg to differ, and so does the NFPA -”the cause of a fire or explosion is not known until near the end of the investigation.” We are professionals, we are not supposed to jump to conclusions, and we are not supposed to let political and public factors determine what we do and don’t investigate. We definitely are not supposed to destroy the very evidence that will provide the answers. And, when every indicator in “the book” is screaming “high-order” explosive damage, we have a history of prior explosives use by terrorists in those exact buildings, we have over 100 first responders reporting hearing “secondary” explosions, the fact that evidence was destroyed and this wasn’t investigated thoroughly is nothing short of criminal! It’s time to get real loud about this. Our Brothers were murdered. My fellow firefighters, we can’t afford to brush this off to politics or ignore this anymore. Stand up with Firefighters for 911 Truth, demand answers, and justice.