5. In 2006, a peer-reviewed article revealed that 118 members of the Fire Department of New York reported witnessing explosions during the collapse of the Twin Towers. Patterns of explosions were witnessed, going around as well as up and down the buildings. This challenged the official claim that the buildings were brought down by plane impact and fires. It suggested controlled demolition.
6. In 2009, another peer-reviewed article reported the discovery of large quantities of an exotic explosive and incendiary (nanothermite) in the dust of the World Trade Center. The samples were collected before the cleanup of the site began. This supported the demolition hypothesis.
7. The National Institute of Standards and Technology, given the task of accounting for the World Trade Center destruction, failed to explain to the satisfaction of many scientists the total collapse of a third skyscraper on 9/11, 47-story World Trade Center 7. No plane hit this building, yet at 5:21 p.m. down it went, beginning its descent symmetrically, suddenly, and at free fall acceleration. Everything about this collapse suggests demolition.
8. In April 2018, eight lawyers filed a petition with the U.S. Attorney for the Southern District of New York. The petition offers detailed evidence that the Trade Center was destroyed by explosives and it demands that this evidence of a federal crime be submitted to a grand jury, with the ultimate aim of charging those responsible.