Sean studied biology at Yale University and worked at a research lab in Hawaii, then changed careers, working in business for a couple of years before going to Columbia University to study international relations for a master’s degree. He worked at the U.S. Department of Defense, then went to MIT to study political science, where he started out studying national security but later focused on the interaction between, science, technology, and society (STS). He has taught college courses on STS, the history of science, US foreign policy, and the Vietnam War. Sean has also served Educational Divide Reform Institute as Research Associate. Sean has taught Professional Business English Communication to business executives and university leaders from Korea, Japan, Latin America, and Africa.