Inside Story - Iran and the West: Thawing of relations?

As a British delegation visits Tehran, we ask if it is to renew ties or to explore business opportunities. Inside Story with presenter Hazem Sika, discusses with guests: Sadegh Zibakalam, professor of political science at the University of Tehran; Babak Emamian, a member of the British-Iranian Business Association; and Richard Dalton, a former British ambassador to Iran.