1) The World Trade Center (WTC) twin towers were destroyed by controlled demolitions.
This is how the collapses may have appeared to non-experts, but demolition experts point out many differences:
• Demolition professionals always blow the bottom floors of a structure first, but the WTC tower collapses began at the upper levels, where the planes hit the buildings.
• Non-experts claim that debris seen blowing out of windows was evidence of explosive charges, but experts identify this as air and light office contents (paper, pulverized concrete, etc.) being forced out of windows as floors collapsed on each other.
• Demolition firms had very sensitive seismographs operating at other sites in Manhattan on September 11. None recorded signs of any explosions prior to the tower collapses. Instead, seismic spikes were noted when debris began hitting the ground.
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Cutting away walls, insulation, plumbing, and electrical conduits to place numerous charges on the towers’ structural columns in advance would not have gone unnoticed.
• Clean-up crews found none of the telltale signs of controlled demolitions that would have existed if explosive charges had been used.
• For more information, see ImplosionWorld’s article (PDF, 56 K) on the WTC collapses, the March 2005 Popular Mechanics, parts 4 and 5, “The Attack on the World Trade Center Towers,” and the video 9/11 Debunked: Controlled Demolition Not Possible.
Read more:
http://www.america.gov/st/webchat-en...#ixzz0fmNcbuc5
That was my thoughts. How could that much explosive be placed without someone noticing???