Reply #2: Imagine for a moment you are a NIST investigator

[Sinti]

You have a wife, mortgage, a couple of kids - maybe one in college. You have been tasked to investigate the "structural failure and progressive collapse of the WTC." You may not contemplate explosives (planted by anyone) in your investigation, because if you do it will be far too disturbing to the general populace; it would encourage further acts of terror, seeing as how those guys managed to do it; you will lose your job and be unable to get another if you talk about it, because you will be labeled insane and unreliable.

What would you do, other than quit?