http://www.nytimes.com/2006/04/06/nyreg ... mains.html
Of the 2,749 people who were killed , the remains of 1,151 have not been identified, despite advanced DNA testing. The chief medical examiners office has been unable to identify over 9,000 fragments taken from the explosions site.
I can see how a collapsing building could crush a body into unidentifiable remains. I can also see how an exploding building could create disintegrated unidentifiable fragments.
The reason the power elite have realized so much success at remolding America to a shape they more desire is that quite a few people have marginal discernment qualities.