Incendiary explosions in the lobby and in the basement levels accompanied the destruction of the North Tower of the World Trade Center (WTC). The evidence for these incendiary explosions is significant and includes numerous eyewitness testimonies and photographic evidence. The official, government investigation conducted by the National Institute of Standards and Technology (NIST) did not address these phenomena in any meaningful way and offered only a weak suggestion that is demonstrably false.
NIST admitted to the presence of an incendiary explosion at the concourse level and to the deaths and injuries caused by it, stating, a “fireball killed or injured several occupants in the Concourse Level lobby (NIST NCSTAR 1-7, p 73).” However, a scientific explanation was never provided. Instead, an untested hypothesis was given as fact.
“There are numerous media reports of building occupants being burned in the ground-floor lobby of WTC 1 following the aircraft impact. Numerous eyewitness accounts describe a large flash fire on the concourse floor lobby at the time of aircraft impact, that came from one or more of the elevator shafts that ran from the concourse floor of the tower past the floors where the aircraft impact took place. This observation suggests that sufficient burning liquid aviation fuel entered at least one of these elevator shafts to continue burning, while it fell roughly 1,175 feet. Even after falling this distance, sufficient unburned fuel was available to create the overpressure that opened the elevator shaft at the concourse level and forced additional unburned fuel into the lobby area, creating the extensive flash fire observed.” NIST NCSTAR 1-5A, p 80
It would have been easy to test this “jet fuel bolus” hypothesis but, as with the other features of the official account, no testing was done. That’s probably because the scientists at NIST knew that this hypothesis was very improbable to begin with.