Peter Ketcham, a former National Institute of Standards and Technology (NIST) employee, explains in the video linked below that he had always been very proud of working for NIST (as a computer scientist/mathematician) and believed at one time that NIST had an established reputation for doing “research of the highest integrity”. He was employed by NIST at the time the investigation into the WTC collapses was ongoing, but was not involved in that research himself.
He describes in the video how he became very disillusioned with his former employer when it was drawn to his attention that NIST had apparently made some quite egregious errors in the investigations into the WTC collapses. For one example that springs to mind, he found that NIST was quite clearly misleading the public when they boldly insisted computer modeling of their proposed WTC7 collapse initiation and the following couple of seconds closely matched what was seen in the actual videos of the event when it clearly did not.
Furthermore, he questions NIST apparent obsession with only identifying an initiating event or failure that could possibly start a collapse process but then ignoring any investigation into the subsequent behaviour of the falling structures, as if that was entirely inconsequential to producing a well rounded and comprehensive report of the three most significant structural failures in history.
Stand for the Truth: A Government Researcher Speaks Out | 9/11 Evidence and NIST