The Chilcot Report: The Source Who Lied

The Chilcot Report revealed that a key source of flawed intelligence in the run-up to the Iraq war was a man known as Curveball. How did this obscure figure come to influence Britain's decision to go to war? David Aaronovitch and guests discuss the story of Curveball and what it tells us about why intelligence sometimes fails.

Presenter: David Aaronovitch

Guests: Peter Taylor, BBC reporter and presenter of "Panorama: The Spies Who Fooled the World"; Stephen Grey, author of The New Spymasters; Valerie Plame, former CIA officer and author of "Fair Game"

Producer: Joe Kent.