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					Originally Posted by fastom
					
				 
				In those pictures below the doofus with the bullhorn is standing atop a pile much too short to have 110 concrete floors broken up. 
			
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 Keep in mind a couple things:
1. There were quite a few basement floors to the towers for the debris to compact into and a lot of other areas underground. (parking floors etc). 
2. A lot of the debris would have been pulverized and smashed into dust by the sheer force of the collapse. When you watch a video of the collapse you see a lot of "smoke" shooting out. Well, thats not smoke, thats pulverized concrete and other materials. Most of that ended up as a thick layer of dust over quite a large area.