MARK THOMPSON on the BBC's role in a changing world

Part 1, June 27: Mark Thompson has been the director general of the BBC since 2004. It's a very high-profile job and he has had to weather a number of scandals and crises during his tenure. In this interview with Chrystia Freeland, he discusses morale amongst the BBC's staff, the effect of aggressive interviewing techniques by star presenters, and self-censorship amongst journalists as they tackle issues like Islam and race.