Brad S.Gregory discusses his new book, "Rebel in the Ranks: Martin Luther, the Reformation and the Conflicts That Continue to Shape Our World" as part of the 500th anniversary of the Protestant Reformation. Speaker Biography: Brad S. Gregory is one of the foremost American historians and authors of the Reformation and Christianity in the 16th and 17th centuries. He holds a Ph.D. from Princeton and additional degrees from the University of Arizona and the Catholic University of Leuven, Belgium. His work has been recognized with the Phi Alpha Theta Best First Book Award and the American Catholic Historical Association's John Gilmary Shea Prize. Gregory is a professor of European history at the University of Notre Dame. For transcript and more information, visit www.loc.gov/today/cyberlc/feature_wdesc.php?rec=8284