It was a blast heard around the world, an explosion so big it literally sent shockwaves through the streets of Beirut. More than 200 were killed, thousands injured, and hundreds of thousands left homeless.  Ian Bremmer examines the aftermath and fallout of the catastrophe in Lebanon, a nation that was already aflame in political turmoil. Ian talks to acclaimed journalist Kim Ghattas, author of Black Wave: Saudi Arabia, Iran, and the Forty-Year Rivalry That Unraveled Culture, Religion, and Collective Memory in the Middle East, about the road ahead for Lebanon and how this moment could impact the region.