Why Did the Twin Towers and Building 7 of the WTC Collapse?
“The administration of U.S. President George W. Bush and Vice President Richard B. Cheney has also failed to provide a credible explanation of the total collapses of the World Trade Center buildings. According to the official explanation, the Twin Towers collapsed because of the impact of the airplanes and the heat from the ensuing fires. But this explanation faces several formidable problems. “First, Building 7 also collapsed, and in about the same way. This similarity implies that all three buildings collapsed because of the same causes. But building 7 was not hit by a plane, so its collapse must be explained by fire alone. That would lead to the conclusion that all three buildings collapsed from fire alone. “Second, however, the fires in these three buildings were not very big, very hot, or very long-lasting, compared with fires in some steel-frame high-rises that did not induce collapses. In 1991, for example, a fire in Philadelphia burned for 18 hours, and in 2004, a fire in Carac
