Tristan Guyette and Colleen Moore of Beyond the Bomb discuss their experiences organizing a nationwide mass movement to prevent nuclear war in an exclusive interview with Joe Cirincione. Early Warning features Press the Button co-host Michelle Dover, Ploughshares Fund Director of Policy Tom Collina, and Ariane Tabatabai of Columbia University on recent news that Iran has restarted uranium enrichment at its Fordow facility and the 30th anniversary of the fall of the Berlin Wall. Joe Cirincione answers a question from Kayvon in California.