Leslie Roberts is Associate Clinical Professor of Population and Family Health at the Mailman School of Public Health at Columbia University. Les Roberts did a post-doctorate fellowship in epidemiology at the Centers for Disease Control and Prevention where he worked for 4 years. In 1994, he worked as an epidemiologist for the World Health Organization in Rwanda during their civil war. Les was Director of Health Policy at the International Rescue Committee from Dec. 2000 until April of 2003. Les had led over 50 surveys in 17 countries, mostly measuring mortality in times of war. In recent years he has taken part in studies to measure mortality in DR Congo, Iraq, and Zimbabwe. His present research is focused on developing methods to document the incidence of rape. He spends his weekends in Central New York with his wife Mary Grace.