Warnings Grow over Nuclear Annihilation as Tensions Escalate Between U.S., Russia & China

The U.N. warned this week that humanity is one miscalculation away from nuclear annihilation" as tensions escalate globally. We speak with Ira Helfand, former president of the International Physicians for the Prevention of Nuclear War, who says the U.N. Security Council permanent members, comprising Russia, China, the U.S., the U.K. and France, are pursuing nuclear policies that are going to lead to the end of the world that we know." We also speak with disarmament activist Zia Mian, co-director of Princeton's Program on Science and Global Security, who says non-nuclear weapon states must pressure other countries to sign onto the 2017 Treaty on the Prohibition of Nuclear Weapons.