Is Cuba a Nuclear Holocaust?

Dino Brigione worked for the U.S. government during the Cuban missile crisis of 1962. He and his colleagues helped to track down Soviet missiles that had been fired from Cuba. Their work earned them a personal commendation from President Kennedy, who died in 2015. In this edition of Witness History, we're joined on stage by North Korea defector Jeff White. We also talk about how hackers can be tracked - even if you don't know they are doing it.