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(e/c)Issues such as poor design or fireproofing serve only to distract from the key question. Even if the buildings were badly designed, even if the fireproofing was sub-standard, even if the relevant floors of the WTC buildings were packed floor-to-ceiling with explosives, it was still the impacts of the planes that began the process that ended with collapse. The good faith interpretation is that some editors think the collapse process is important enough to be covered in the lead of the top-level article on the attacks. I don't, but I would bow to consensus if it disagreed with me. talkstalk "