On GPS Sunday, Fareed tackles three of America's biggest foreign policy puzzles. First, to Iran, where the New York Times bureau chief tells Fareed what Iranians think about the nuclear negotiations, both on the street and in the government. Then, Jordan's King Abdullah II explains the rise of ISIS and how the terror group can ultimately be defeated. And, a look deep inside North Korea, the most secretive nation in the world. Finally, drones are most famous for use as killing machines, but some could actually be used to save lives.