Robert Spencer is the director of Jihad Watch, a program of the David Horowitz Freedom Center, and the author of thirteen books, including two New York Times bestsellers, The Truth About Muhammad and The Politically Incorrect Guide to Islam (and the Crusades) (both Regnery). Recent books he has written include Did Muhammad Exist? An Inquiry Into Islam’s Obscure Origins (ISI) and Not Peace But A Sword: The Great Chasm Between Christianity and Islam (Catholic Answers). His latest book is Arab Winter Comes to America: The Truth About the War We’re In (Regnery).