...without it none of those who found that WTC 1 & 2 collapsed due to the severe localized impact damage and the ensuing chaotic fires would have viable careers. As it is, they do and you are left to piss into the wind. Such is life.
Integrity isn't the province of those more concerned about their reputations or the viability of their careers than with getting at the truth; it's the province of men like Copernicus, Bruno, and Galileo, whose livelihoods were adversely effected (to say the least) in the interest of discovery. Only a major deficiency in the integrity department would lead someone to believe otherwise.
And all have been free to search for what you prefer the truth to be and none have found it. To borrow Skylar's wrap up: no evidence of "Adamantium" or any other explosive was found nor has any of the "fireproof ninjas" with "mighty morphin' thermal cutters" necessary to perform the deed.