Ok, unanswered questions :
What could have people so fundamentally opposed to a new investigation, when they themselves make every effort to distance themselves from the only actual investigation because of its many admitted flaws?
Especially given the confidence in the finding, you would expect people would have desired a new investigation, if only to shut up the critics?
I assume you are referring to 7 World Trade Center specifically? You don't make that clear but I will run on that assumption and you can correct me if I am wrong.
The simple fact is, 7 collapsed due to prolonged exposure to un-fought fires well in excess of the buildings design safety limits. This known fact has been known since before the building even collapsed and there is no significant disagreement on this fact from the FDNY, the City of New York, the buildings owners, the buildings insurers, CTBUH, ASCE or NIST. What NIST tried to do is add to our knowledge base by trying to identify the specific point of failure that initiated collapse. Their investigation created a
Probable Collapse Scenario that is plausible. Contrary to Truther mythology this conclusion is
not etched in stone for the simple reason it is beyond unlikely that any investigation could reach a definitive conclusion with the limited evidence available. You may agree or disagree with NIST's conclusions on this detail of collapse initiation (most of us here I think either disagree or at least have reservations) but even if you remove the NIST report from the picture completely
the null hypothesis remains fire + time + gravity = collapse.
CT's I think have this fantasy of falsify NIST = prove CD, which is of course complete nonsense.
No plausible alternative has ever been put forward, by anyone, ever (that most definitely includes you). There is no new evidence any
new investigation could use to reach a fundamentally different conclusion than fire-induced collapse. Building 7 was not a terrorist target. Therefore, what exactly is it a
new investigation is supposed to investigate and why? Is the purpose of this new investigation just to
shut up critics, which consist of a tiny lunatic fringe minority who will automatically reject any conclusion that does not fit their own personal brand of reality-distortion?
Is that really worthwhile?