Ok Boys and Girls debunk this, from the USGS no less, if you know anything about 911 this makes sense..
Incontrovertible Proof that the WTC was destroyed by
Underground Nuclear Explosions
In the aftermath of the collapse, a team of scientists from the US Geological Survey
collected samples of dust from 35 locations in Lower Manhattan where it had come to rest
from the enormous pyroclastic dust cloud that enveloped the city.
In the dust, they found high levels of chemical elements that had no business being there.
Extremely rare and toxic elements.
Some of them elements that only exist in Radioactive Form.
Elements such as Strontium, Barium, Thorium, Cerium, Lanthanum and
Yttrium.http://www.nucleardemolition.com/files/ ... eport0.pdf