Why Libya is Suddenly on the Verge of Civil War

Libya today is arguably closer to a full blown civil war than at any time since the fall of Muammar Ghaddafi in 2011. A renegade general named Khalifa Haftar is on the March, seeking to upend an Islamist controlled parliament. Who is this man, what does he want, and why are conditions ripe for a civil war? Mark speaks with journalist Marine Casalis who puts the unfolding situation in Libya in some context.