Should Prince Charles Be Next Head Of Commonwealth?

The Queen has expressed her desire for Prince Charles to take over her Commonwealth role. Should he? Biographer Tom Bower and royal historian Hugo Vickers discuss the future role of the heir to the British throne. Also on the programme: how do former staff of the FBI feel about the ex-director James Comey and his apparent love of the limelight? And why have nomadic sea divers in Indonesia evolved bigger spleens than the rest of us?

(Picture: The Queen and Prince Charles at the opening ceremony of the Commonwealth Heads of Government Meeting in London Credit: PA)