Fr. Robert Gahl is an Associate Professor of Ethics at the Pontifical University of the Holy Cross. A native of Milwaukee, Wisconsin, he studied chemical engineering at Washington University in St. Louis and then went to Silicon Valley where he worked with control software of electron beam lithography systems. After studies in graduate philosophy at the University of Navarre, Spain, he finished his doctorate in Rome at the Pontifical University of the Holy Cross and did postdoctoral research at the University of Notre Dame. Fr. Gahl, a priest of the Prelature of Opus Dei, was ordained to the diaconate by Bishop Alvaro del Portillo and to the priesthood by Pope John Paul II in the Basilica of St. Peter. A professor at the Pontifical University of the Holy Cross since 1991, he has published on natural law theory, sexual ethics, moral action, and the narrative structure of the moral life. Interviews and comments by Father Gahl regarding ethics and religious affairs have appeared in The New York Times, The Washington Post, Newsweek, La Presse, The National Catholic Reporter, The National Catholic Register,  Relgion News Service, Cox News Service, Catholic News Service, and AP, as well as Fox News, CNN, CBS, BBC World, Sky News, AP TV, EWTN, and Vatican Radio. In addition to Italy and the USA, he has lectured in Spain and Kenya.