Philip Taubman, consulting professor at Stanford University's Center for International Security and Cooperation and Ploughshares Fund board member, joins Press the Button to remember the late George Shultz, former Secretary of State under President Ronald Reagan and a prominent advocate for nuclear arms control. Early Warning features Kelsey Davenport of the Arms Control Association on a temporary agreement reached between Iran and the International Atomic Energy Agency that ensures the continuation of some nuclear verification and monitoring activities.