How Sudan's civil war disrupts research into the ancient civilization of Kush

Conflicts around the world impact people's daily lives, but wars also impact our understanding of the past. That's true in Sudan, where an ancient civilization known for millennia as the Kingdom of Kush once thrived. Research about that civilization is underway, but war is making it difficult. Geoff Emberling at the University of Michigan, is an archaeologist who is the co-director of the Jebel Barkal archeology site in northern Sudan. He speaks with The World's Host Carolyn Beeler.