Prof. Elihu D. Richter MD MPH is head of the Genocide Prevention Program and Injury Prevention Center and Director of the Jerusalem Center for Genocide Prevention. He is the retired head of the Unit of Occupational and Environmental Medicine and the Injury Prevention Center at Hebrew University-Hadassah School of Public Health and Community Medicine, and the author of over 150 papers, monographs, and editorials. In recent years he has been working on epidemiologic models for prediction and prevention of genocide, mass atrocities and terror, with specific emphasis on the cause-effect relationship between hate language and incitement and these outcomes.