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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]AZCat
(8,347 posts)Engineers are inherently conservative, so it's a bit much to expect them to regularly think outside the box.
That said, plenty of us had vested professional interest in the causes of the collapses. Designers of buildings do care about their work, and it was important that we knew why the buildings collapsed so we could determine what changes (if any) were merited to our standards of design, or even the building codes.
Engineering professionals may have disagreed about the specific cause of the collapses (lacking the information that was later available from sources such as the NIST reports) but it was difficult to find one who gave "alternate" theories any serious consideration, because they simply weren't credible in most cases. There will always be exceptions like Judy Wood, who has a PhD. in mechanical engineering and supports alternative theories, but they were (and are still) in a small minority.