The War in Ukraine has brought us, seemingly, closer to nuclear war. The closest we've been since the Cuban Missile Crisis. Comments from President Putin have raised questions such as what would the fallout be if Russia did use nuclear weapons? Is Putin really considering using weapons of that scale and how would the United States respond? Emma Belcher is the president of the Ploughshares fund, a foundation with one goal in mind, reducing the threat of nuclear weapons. She joins us to navigate the threats.