In the fall of 2005, Brigham Young University professor Steven Jones presented this simple principle in a BYU campus auditorium packed with hundreds of people to illustrate how several of the World Trade Center towers fell too quickly on Sept. 11, 2001, to have only been hit by planes. To reach free-fall speed, Jones explained, the building’s floor supports would have needed to be blown apart. In other words, the carnage of 9/11 would have required another catalyst of destruction beyond hijacked planes—an explosive to cause the buildings to implode.
The discussion ran two hours and only ended because students began arriving for a class to be held in the room. Before concluding, Jones asked if anyone was not convinced more investigation was needed. Only one professor raised his hand. “And he tracked me down the next day on campus and told me I changed his mind,” Jones says.