Kathleen Sebelius, the U.S. secretary of health and human services, gave a talk Friday to graduates of Georgetown University's Public Policy Institute, despite opposition from some Roman Catholic groups. Critics said that Sebelius's involvement in the Obama administration's health care policies -- including requirements that employees have access to birth control coverage, contrary to Roman Catholic teachings -- made her an inappropriate speaker at a Catholic institution. During her appearance, one audience member stood up and shouted "You're a murderer" at Sebelius, The Washington Post reported, but she continued to speak and received an "enthusiastic" response from the graduates. In her talk, Sebelius said that a "process of conversation and compromise" is required when dealing with religious issues and public policy.