JOSHUA S. GOLDSTEIN is professor emeritus of International Relations at American University. He is the author of six books about war, peace, diplomacy, and economic history, and a bestselling college textbook, International Relations. See www.joshuagoldstein.com.

STAFFAN A. QVIST is a Swedish engineer, scientist, and consultant to clean energy projects around the world. Trained as a nuclear engineer, he works with both renewable and nuclear energy development projects. See www.staffanqvist.com.