Nuclear nonproliferation has worked so far, but watch out for those questioning it — arms control expert

Nuclear nonproliferation treaties have been a success at stopping the atomic club from growing further by discouraging new membership, but nuclear weapons expert Kelsey Davenport says the slow pace of disarmament "is causing some states to begin to question that bargain." Although it's unlikely that nuke-curious countries will actually get the bomb because it costs too much time, money and resources, Davenport told Ian Bremmer on GZERO World that she believes that simply questioning the benefits of nonproliferation creates a real risk that must be "monitored and mitigated."

Watch the episode: Nuclear weapons: more dangerous than ever?