Susan Jacoby is the author of "The Age of American Unreason," to be published in February by Pantheon. She began her writing career as a reporter for The Washington Post, and has been a contributor to a wide range of periodicals and newspapers for more than 25 years on topics including law, religion, medicine, aging, women's rights, political dissent in the Soviet Union and Russian literature. Jacoby has been the recipient of grants from the Guggenheim, Rockefeller and Ford Foundations, as well as the National Endowment for the Humanities. In 2001-2002, she was named a fellow at the Center for Scholars and Writers at the New York Public Library. Jacoby’s other books include Freethinkers: A History of American Secularism (2004); Wild Justice: The Evolution of Revenge, a Pulitzer Prize finalist in 1984, and Half-Jew: A Daughter's Search for Her Family's Buried Past. She is working on a book about the relationship between American anti-intellectualism and political polarization, to be published by Pantheon in 2008. Her photo is by Chris Ramir.

Martin E. Marty is Fairfax M. Cone Distinguished Service Professor Emeritus at the University of Chicago, where he taught religious history, chiefly in the Divinity School, for 35 years, and where the Martin Marty Center has been founded to promote “public religion” endeavors. For a decade prior to entering academia, the “On Faith” panelist served parishes in the west and northwest suburbs of Chicago as an ordained Lutheran pastor. Marty is the author of more than 50 books including Righteous Empire: The Protestant Experience in America (1970), for which he won the National Book Award. His additional honors include the National Humanities Medal, the Medal of the American Academy of Arts and Sciences, the University of Chicago Alumni Medal, the Distinguished Service Medal of the Association of Theological Schools, and the Order of Lincoln Medallion (Illinois’ top honor). Marty has served as president of the American Academy of Religion, the American Society of Church History, and the American Catholic Historical Association. He also has served on two U.S. Presidential Commissions and was director of the Fundamentalism Project of the American Academy of Arts and Sciences and the Public Religion Project at the University of Chicago. He is Senior Regent of St. Olaf College in Northfield, Minnesota.

He also earned a doctorate in moral theology at the Pontifical University of the Holy Cross in Rome. Monsignor Bohlin was ordained a priest for the Prelature of Opus Dei in 1997. Prior to coming to New York as the head of Opus Dei in the United States, he worked for the five years with Opus Dei’s Prelate, Bishop Javier Echevarría, at Opus Dei's international headquarters in Rome as chancellor for Opus Dei. Monsignor Bohlin has spoken about faith issues on such news programs as “Hardball with Chris Matthews” and “Meet the Press.” Opus Dei has 87,000 members worldwide and 3,000 in the United States. Pope John Paul II canonized Opus Dei’s founder, Saint Josemaría Escrivá, in 2002, calling him “the saint of ordinary life."

Gustav Niebuhr is an associate professor of religion and the media, an interdisciplinary position in the College of Arts & Sciences and the S.I. Newhouse School of Public Communications at Syracuse University. Since June 2004, the “On Faith” panelist has directed the Religion & Society Program, an interdisciplinary undergraduate major. Niebuhr served as a visiting fellow/scholar in residence at the Center for the Study of Religion at Princeton University from December 2001 to 2003. Supported by a Ford Foundation Grant, he conducted research on religious diversity and interfaith collaboration. Prior to his academic tenure, Niebuhr was a national correspondent for The Washington Post, the New York Times and the Wall Street Journal, writing feature and analytical articles, and reporting on news about religion. He won several awards, including the 1993 Templeton Religion Writer of the Year Award from the Religion Newswriters Association. His articles have appeared in the New York Times Magazine, the New York Times Book Review, the Carnegie Reporter, the Christian Century, Tricycle: The Buddhist Review and Beliefnet.com. An experienced public lecturer,Niebuhr most recently spoke at Auburn Theological Seminary in May 2006 on “Is ‘Tolerance’ a Social Good?” and at Massachusetts Institute of Technology in May 2005, he lectured on “Religion as News.”