Book excerpt: The definitive treatment of a topic thateight years after 9/11deserves, finally, a truly rigorous inquiry. At 5:20 in the afternoon on 9/11almost seven hours after both the Twin Towers had collapsedBuilding 7 of the World Trade Center also came down, even though it had not been struck by an airplane and had fires on only a few floors. The reason for its collapse was considered a mystery. Noting that President Obama has declared that his administration will restore science to its rightful place, David Ray Griffin shows that science emphatically does not support the conclusions of the NIST (the National Institute of Standards and Technology) WTC 7 report. He demonstrates that NIST is guilty of the most serious types of scientific fraud: fabricating, falsifying, and ignoring evidence. His study concludes by pointing out that even after all its distortions of fact, the NIST has still left the world wondering: How could a building brought down by firenot explosiveshave collapsed at free-fall speed?