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Professor Sir David Spiegelhalter is one of the great communicators of probability and uncertainty.
His new book, The Art of Uncertainty, explains how to approach uncertainty, luck, probability and ignorance.

Tim Harford talks to Sir David about double yoked eggs, the Bay of Pigs, and his top tips for politicians who want to communicate evidence and uncertainty.

Presenter: Tim Harford
Series producer: Tom Colls
Production co-ordinator: Katie Morrison
Sound mix: John Scott
Editor: Richard Vadon

Image: Portrait of mathematician and Risk guru, Professor Sir David Spiegelhalter (Photo by In Pictures Ltd./Corbis via Getty Images)