Dr. Henry H. Willis is the Associate Director for Research of the Meselson Center, which is dedicated to reducing risks from biological threats and emerging technologies. He is a senior policy researcher at RAND and a professor of policy analysis at the RAND School of Public Policy. Willis is a recognized expert in risk analysis and management. Recent work analyzes biosecurity risks and biodefense capabilities; emerging and existential risks; climate and natural disaster risks; critical infrastructure resilience; and national preparedness to chemical, biological, nuclear, and radiological attacks. He is a member of the Council on Foreign Relations and serves on the Science and Governance Committees of the Society for Risk Analysis. His work in homeland security policy evolved from his work on program evaluation at the White House Office of Management and Budget and infrastructure design as a water and wastewater engineer. He earned his Ph.D. in engineering and public policy at Carnegie Mellon University, M.S. in environmental engineering from the University of Cincinnati, and B.A. in chemistry from the University of Pennsylvania.