Nuclear arms control: perspective from arms control expert Kelsey  Davenport

Arms control expert Kelsey Davenport joins Ian Bremmer on GZERO World to talk about the world's long fascination with nuclear weapons and how close we still remain to all-out nuclear war. Today's nuclear threat is not about who has the most nukes, it's about who has the smartest ones. Davenport addresses the question: Do nuclear weapons keep us safe?

Watch this episode of GZERO World with Ian Bremmer: