“9/11 conspiracy theorists beware: Popular Mechanics has popped your paranoid bubble world, using pointed facts and razor-sharp analysis.” —Austin Bay, national security columnist (Creators Syndicate) and coauthor of From Shield to Storm

Decades after the World Trade Center disaster, rampant speculation abounds on what actually happened. Wild talk flourishes on the Internet, TV, and radio. Was the Pentagon really struck by a missile? Was the untimely death of Barry Jennings, who witnessed the collapse of Tower 7 and thought he heard “explosions,” actually an assassination? Not everyone is convinced the truth is out there.

Once again, in this updated edition of the critically acclaimed Debunking 9/11 Myths, Popular Mechanics counters the conspiracy theorists with a dose of hard, cold facts. The magazine consulted more than 300 experts in fields like air traffic control, aviation, civil engineering, firefighting, and metallurgy, and then rigorously, meticulously, and scientifically analyzed the twenty-five most persistent 9/11 conspiracy theories. Each one was conclusively refuted with facts, not politics and rumors, including five new myths involving the collapse of 7 World Trade Center and four longstanding conjectures now considered in the context of new research.

“A reliable and rational answer to the many fanciful conspiracy theories about 9/11 . . . What happened on 9/11 has been well established by the 9/11 Commission. What did not happen has now been clearly explained by Popular Mechanics.” —Richard A. Clarke, #1 New York Times-bestselling author of Against All Enemies

“Do you have a friend who emails you the most recent documentary ‘proving’ that a missile impacted the Pentagon or that timed explosions brought down WTC-7? Buy him a copy of this book. He’ll thank you later.” —The Weekly Standard