Flight 93 is the heroic 9/11 story that inspired America and produced the Pentagon's "Let's Roll" recruiting slogan for the Iraq invasion. Brave passengers, enraged when they learned about the 9/11 events by phone, organized an attack that brought the plane down in rural Pennsylvania. It was the drama that powered America's war effort. But how much of the Flight 93 legend is truth, and how much wishful thinking or even propaganda? In a book that will...