9/11 And Gulf War Syndrome

I recently watched this video presentation about 9/11 from Architects & Engineers:

http://www.architects-engineers.org/

One of the things stated in the video is that by destroying the debris of the World Trade Center buildings our government withheld evidence which would have allowed investigators to come to a scientifically valid conclusion about what had happened that day in NYC.

This reminded me of a similar statement I heard years ago. I attended the first symposium at the National Institutes of Health regarding what was at the time called "Gulf War Syndrome". The scientific panel which had been convened by the government started the symposium by stating that the US government itself was denying them access to the information they needed to do their jobs.

That's how Uncle Sam operates: withhold and/or destroy evidence which would contradict any conclusion other than the one they prefer.

And they claim that to release such evidence would "endanger public safety".

HORSESHIT !!! How does the truth endanger public safety?