Hayley Atwell meets ex-spy Katherine Gun and journalist Martin Bright, who tried to derail the course of history. On the brink of the Iraq War, Katherine leaked a top-secret memo which exposed a US plot to secure support for the invasion through blackmail. Would YOU have done the same? From SPYSCAPE, the headquarters of all things spy. A Cup And Nuzzle production. Series producer: Gemma Newby. Produced by Louise Clarke-Rowbotham. Music by Nick Ryan.