Kai-Henrik Barth is Visiting Assistant Professor, Director of Studies, and member of the core faculty in the Security Studies Program. Dr. Barth holds undergraduate and graduate degrees in physics from the University of Münster and the University of Hamburg, Germany, respectively. He was a National Science Foundation post-doctoral fellow from 2000 to 2002. He has served as a lecturer in the Science, Technology, and International Affairs (STIA) program at Georgetown University's School of Foreign Service, and as an Analyst in Science and Technology Policy for the Congressional Research Service. Dr. Barth's current research focuses on the causes and consequences of nuclear proliferation, with a particular emphasis on Iran and South Africa. He is the guest editor (with John Krige) of a special issue of the journal Osiris on Historical Perspectives on Science, Technology, and International Affairs.