Kathleen Sebelius, secretary of the U.S. Department of Health and Human Services, will deliver the keynote address at the University of Colorado Boulderās annual Conference on World Affairs to be held April 7-11. Sebeliusā address, āThe Globalization of Health,ā will be presented on Monday, April 7, at 11:30 a.m. in Macky Auditorium. All of the conferenceās 200 panel discussions, performances and plenaries are free and open to the public.