The challenge of stabilizing a recaptured Mosul

As the Iraqi military continues its push into the Islamic State-stronghold of Mosul, how are the disparate forces who make up the coalition working together, and how does Iraq plan to stabilize the city and prevent ethnic tensions? Special presidential envoy Brett McGurk talks with Hari Sreenivasan about the operation to retake the city and the coming fight against the militants in Raqqa.