Peter Heather is Chair of Medieval History at King's College London. Some of his most famous books include The Fall of the Roman Empire, Rome Resurgent, Christendom, and most recently Why Empires Fall: Rome, America and the Future of the West. We talk about the last days of the western Roman empire, the role of barbarians, the rise of the Persian empire, decadence, popular cliches, the worst Roman Emperor of all time and many parallels of falling Rome with the West today.