Libya migrant crisis: A humanitarian emergency

The largest flow of African migrants trying to escape to a better life in Europe is attempting to do so via one country: Libya. Although some arrive by choice, others come by force, and Libya is now described as a "purgatory" where migrants face appalling conditions, sexual abuse, torture and becoming the victims of human traffickers, before facing the deadliest stretch of the Mediterranean Sea. Our guest Caroline Gluck, Senior External Relations Officer for the UNHCR Libya operation, tells us more.