Larry Brilliant is President and CEO of the Skoll Global Threats Fund which works on climate, nuclear, pandemic, water and Middle East conflicts. He previously was Vice President of Google and Executive Director of Google.org. Brilliant worked on the successful WHO smallpox eradication program in India. Follow on Twitter @larrybrilliant.
William Foege is an epidemiologist who helped lead the successful campaign to eradicate smallpox in the 1970s. Foege is a senior fellow in the Bill and Melinda Gates Foundation's Global Health Program. He has served in a variety of executive positions at the Carter Center and is senior investigator on child development at the Task Force for Child Survival and Development as well as Presidential Distinguished Professor of International Health at the Rollins School of Public Health. Follow Larry Brilliant and William Foege on Twitter @larrybrilliant