The twin global emergencies of COVID-19 and climate change are forcing the U.S. foreign policy establishment to reassess its traditional conceptions of national security. According to a still dominant paradigm, the gravest dangers the United States faces emanate from adversaries with sufficient military capabilities to attack the nation and its allies or, at a minimum, thwart its political and economic objectives. These threat perceptions expanded dramatically following 9/11. After a handful of jihadists armed with boxcutters inflicted a grievous wound on the U.S. homeland, transnational terrorists joined geopolitical rivals and rogue states in the pantheon of security threats. But the […]