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Jim Walsh is a senior research associate at the Massachusetts Institute of Technology’s Security Studies Program. His research and writing focus on international security, in particular topics involving nuclear weapons, the Middle East, and East Asia. He is the international security contributor to the NPR program “Here and Now,” and his comments and analysis have appeared in the New York Times, the New York Review of Books, the Washington Post, the Wall Street Journal, ABC, CBS, NBC, Fox, and numerous other national and international media outlets. He received his PhD from the Massachusetts Institute of Technology and has taught both there and at Harvard University.