Includes bibliographical references (p. 285-296) and index.

How can the most powerful country in the world feel so threatened by an enemy infinitely weaker than we are? How can loving parents and otherwise responsible citizens join terrorist movements? How can anyone possibly believe that the cause of Islam can be advanced by murdering passengers on a bus or an airplane? In this important new book, groundbreaking scholar Louise Richardson answers these questions and more, providing an indispensable guide to the greatest challenge of our age. [--from publisher's website}