Professor Thomas Barfield is one of the preeminent experts on Afghanistan, having spent over five decades studying and writing on the country. He is the author of 'Afghanistan: A Cultural and Political History' and 'Shadow Empires,' among many others. In this interview, he talks about traveling around Afghanistan for the first time in 1971 and the impact it had on him, his fieldwork in northern Afghanistan, the country's history, its place in the region, its complex politics and society,...