Nick Davies spent 40 years as a journalist, mainly doing investigative work for The Guardian. He was centrally involved in uncovering the phone-hacking scandal in Rupert Murdoch’s empire; initiating the alliance of news organisations which published US official secrets obtained by Wikileaks; and working in the team which handled Edward Snowden’s leaks about the US National Security Agency. He wrote six books including Flat Earth News which investigated the flow of falsehood, distortion and propaganda through mainstream news organisations; and Dark Heart which exposed the hidden world of UK poverty including the return of widespread child prostitution.