John L. Esposito, professor at Georgetown University and co-author of Who Speaks For Islam: What A Billion Muslims Really Think, the causes of and misconceptions about Muslim radicalism, religion as an accessory to, not motivation for terrorism, the research behind the facts in the book, the nature of bin Laden’s recruitment pitch, 'democratic exceptionalism,' the similarities between Islam and Christian values and the underlying racism of American media and many citizens.