Over decades of his writings, Joseph Ratzinger laid out a critique of modern secularist thought and sketched an alternative vision of "healthy secularity" for modern liberal democracies. His ideas bear directly on current controversies in First Amendment jurisprudence, and they present major challenges to jurists, politicians, and churches in the U.S. today. Professor Daniel Burns (University of Dallas, formerly HHS/OCR) will present the main findings of the book he is currently writing on Ratzinger's understanding of church-state relations.