Amid Tensions with North Korea, 51 Countries Sign Ban on Nuclear Weapons Despite U.S. Opposition

Amid tensions over North Korea's nuclear and missile tests, 51 countries have signed the world's first legally binding treaty banning nuclear weapons. It prohibits the development, testing and possession of nuclear weapons, as well as using or threatening to use these weapons. It was first adopted in July by 122 U.N. member states, despite heavy U.S. opposition. None of the nine countries that possess nuclear weapons signed the measure, including Russia, Britain, China, France, India, Pakistan, North Korea and Israel. We speak with Susi Snyder, nuclear disarmament program manager for the Netherlands-based group PAX and author of the report "Don't Bank on the Bomb."