Ivor Prickett, a photojournalist, witnessed the last days of the fighting in Mosul. He was on assignment for the New York Times -- he shares stories behind a series of striking photos, which captures the city's traumatized residents trying to flee the city to safety. And a BBC experiment on digital detoxing. Presenter Anu Anand discusses these stories with guests Claire Fox, director of the Institute of Ideas in London, and Karl Sharro, architect, satirist and Middle East commentator.