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In reply to the discussion: 9/11 Link To Saudi Arabia Is Topic Of 28 Redacted Pages In Government Report; Congressmen Push For R [View all]Ace Acme
(1,464 posts)... to a "massive conspiracy".
Why would it take thousands to pull it off?
Conventional engineering wisdom from 2002 to 2005 was that a few truss anchors in the towers had failed, causing the floors to "unzip" and then come down in a "pancake" collapse. If that's true, a suicide guy operating a high-speed cutting disk could have cut enough trusses in 20 minutes to bring a tower down. Dr. Van Romero, an explosives expert, opined that a few charges in key places could bring the towers down.
NIST's theory about WTC7 is that one girder failed, causing a chain reaction that brought the whole building down. If that's true, then only one girder need be cut at one end and the whole building comes down.
Much has been accomplished in ten years. The official reports have been shown to be scientifically flawed and incomplete and very likely dishonest. The need for new investigations has been demonstrated, and the government's secrecy betrays them. For instance, one structural engineer wanted to see NIST's worksheets on their calculations for the thermal expansion that they claim pushed the inciting girder off its seat. His request was refused on grounds that release of those calcs might endanger public safety. It's ridiculous! There is no secret to thermal expansion calcs. It's simple textbook stuff. NIST didn't want anyone checking their work, so they keep the worksheets secret.