Dr. Jorgensen is a molecular radiation biologist who is interested in risk assessment of environmentally-induced human cancer, from both chemicals and radiation. He is particularly concerned with human subpopulations that are genetically predisposed to very high cancer risk. He works at the Lombardi Cancer Center at Georgetown University and is a member of the Lombardi Cancer Genetics and Epidemiology Program. He has a Ph.D. in Environmental Health Sciences, and a Certificate in Risk Science from the Johns Hopkins Risk Science and Public Policy Institute.