The Grand Ethiopian Renaissance Dam (GERD) will be inaugurated this Tuesday. Damming the Blue Nile, which flows from Ethiopia into Sudan and Egypt, creates the largest hydropower plant in Africa, and the eighth largest in the world. But the GERD has also caused mounting tensions with its downstream neighbors, Egypt and Sudan. The World’s Host Marco Werman spoke with political scientist Hana Attia about the unresolved issues surrounding the GERD.