What's behind the violence in Lebanon's capital?

Lebanon's capital saw its worst street violence in more than a decade. What started as a protest over an investigation into last year's Beirut port blast became a gunfight. Could this trigger more chaos in a country already on the brink of ruin? Join host Imran Khan. Guest: Sami Nader, Director of the Levant Institute for Strategic Affairs. Rami Khouri, Director of Global Engagement at the American University of Beirut.   Jessica Obeid, Activist and independent energy policy consultant.