Buckley "Buck" O'Day received his Ph.D. from MIT in 2015 studying low-dose active interrogation approach for detecting shielded high-Z materials in cargoes. Buck is a career Army Infantry officer who now serves as a Nuclear and Counterproliferation officer. He has a B.S. in Civil Engineering from the United States Military Academy at West Point, a Master of International Management from the University of Maryland University College, and a M.S. in Nuclear Engineering from the Air Force Institute of Technology. Buck hails from Texas but has spent much of his time abroad. He spends his free time with his wife and four children, and enjoys long distance running and reading. Buck departs MIT to work on nuclear related issues for the U.S. Government.