On September 11, 2001, the world shook. The United States of America has been subjected to terrorist attacks unprecedented in their audacity, composure and scale. According to the official version, Arab suicide bombers hijacked four passenger airliners and used them as murder weapons. But is this really so? Could the Twin Towers have collapsed from airplane strikes? Why is there no evidence of an airliner hitting the Pentagon? What happened in the skies of Pennsylvania? Why are many of the "suicide bombers" alive? The official version is full of contradictions and inconsistencies. The author conducts a thorough analysis of the events that took place on September 11, supporting it with scientific calculations, photographs and expert statements. The book makes you take a fresh look at the events of those days and think about a lot.