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Contact: Michael E. Newman
michael.newman@nist.gov
301-975-3025
National Institute of Standards and Technology (NIST)
Caption: NIST graphic showing the buckling of WTC 7 Column 79 (circled area), the local failure identified as the initiating event in the building's progressive collapse on 9/11.
Credit: NIST Building and Fire Research Laboratory
Usage Restrictions: None
Related news release: NIST releases final WTC 7 investigation report
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