My focus in the area of policy has its roots in public health issues, with particular emphasis on issues of injury and violence, as well as disaster preparedness, substance use disorders and public health systems and services. I have held academic appointments at Yale University in the School of Public Health and School of Medicine and was the director of the National Center for Injury Prevention and Control at the CDC and later the Executive Director of Defense Health Horizons, as well as spending a year working in the U.S. Senate. I am Past President of the American Public Health Association, Past President of the Society for the Advancement of Violence and Injury Research, and currently serve on the boards of several non-profit organizations. Currently, I am on the faculty of the Yale School of Public Health and also do consulting work in public health and injury and violence prevention.