What Drives Americans to Join the Jihad? The Book 'United States of Jihad' Explains

Peter Bergen's book, United States of Jihad, was covered in the Los Angeles Times:

In "United States of Jihad" Peter Bergen, a vice president of the New America Foundation and one of America's most prominent terrorism experts, makes a compelling and often unsettling case that, in the years since Sept. 11, 2001, Islamist terrorism in the United States has metamorphosed. Worries about "sleeper cells" operating under the hierarchical, elitist model of organizations like Al Qaeda have been overshadowed by the domestic threat from diffuse networks and virtual, online communities of like-minded jihadists.