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Comments on NIST briefing collapse WTC 7 21 aug 2008
Comments on NIST briefing collapse WTC 7 21 aug 2008 - TVcert
Got any physical evidence yet?
Idiot
Your entire investigation included no physical evidence. How can you be so sure you know what happened?
In general, much less evidence existed for WTC 7 than for the two WTC towers. The steel for WTC 1 and WTC 2 contained distinguishing characteristics that enabled it to be identified once removed from the site during recovery efforts. However, the same was not true for the WTC 7 steel. Certainly, there is a lot less visual and audio evidence of the WTC 7 collapse compared to the collapses of the WTC 1 and WTC 2 towers, which were much more widely photographed.
Nonetheless, the NIST investigation of WTC 7 is based on a huge amount of data. These data come from extensive research, interviews, and studies of the building, including audio and video recordings of the collapse. Rigorous, state-of-the-art computer methods were designed to study and model the building's collapse. These validated computer models produced a collapse sequence that was confirmed by observations of what actually occurred. In addition to using its in-house expertise, NIST relied upon private sector technical experts; accumulated copious documents, photographs and videos of this disaster; conducted first-person interviews of building occupants and emergency responders; analyzed the evacuation and emergency response operations in and around WTC 7 performed computer simulations of the behavior of WTC 7 on Sept. 11, 2001, and combined the knowledge gained into a "probable" collapse sequence.
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