The collapse of World Trade Center Building 7 on 9/11 was a sudden and symmetrical event. A physics teacher's discovery of free fall acceleration in 2008 challenged the government's explanation. Independent scientists, including the U.S.G.S., have confirmed the presence of high-temperature incendiaries in WTC dust samples.
9/11: Explosive Evidence - Experts Speak Out
The documentary presents the viewpoints of over 1,700 architects and engineers who argue that scientific evidence suggests the World Trade Center skyscrapers fell due to controlled demolition on September 11, 2001.