No steel-framed skyscraper can defy the laws of science and of basic physics and collapse symmetrically at free-fall speed into its own footprint as a result of fire.
The World Trade Center Building 7, a 47-story steel-framed skyscraper, which was not hit by an airplane and suffered only a few scattered fires, collapsed symmetrically into its own footprint at 5:21 PM on September 11, 2001.
Therefore, Building 7 did not fall as a result of fires, as the United States government claims. The only way a building could so collapse is through controlled demolition.
Edward Curtin is a sociologist and writer who teaches at Massachusetts College of Liberal Arts and has published widely.