Ambassador Susan Burk joins co-host Joe Cirincione for a discussion on the landmark Nuclear Non-Proliferation Treaty (NPT). Opened for signature in 1968, the treaty commits states to prevent the spread of nuclear weapons and to negotiate general and complete disarmament. Serving under President Barack Obama, Ambassador Burk was responsible for working with other states to strengthen the NPT and the international nonproliferation regime. Early Warning features Akshai Vikram and Allegra Harpootlian discussing the financial and environmental costs of US foreign policy, and how India is being transformed under Prime Minister Narendra Modi. Joe and co-host Michelle Dover answer a question from Orion.