He exposed one of the biggest scandals in recent British political history. Nick Davies, the journalist who laid bare a political controversy that reached into multiple British institutions and painted a picture of a news organisation so powerful that those institutions, including parliament, police and the rest of the British media, dared not take it on.

Davies has just published a book on the story: Hack Attack: How the Truth Caught Up With Rupert Murdoch. What starts as a probe into the criminal culture at British tabloids owned by Murdoch's News Corporation ultimately lifts the veil on the shadowy end of government; the cosy relationship between successive prime ministers at 10 Downing Street and a media baron skilled at acquiring assets, wealth and political power.

Richard Gizbert sat down with Nick Davies in London, to discuss the story, the power of fear and the future of the Murdoch media empire, which lies disgraced, but by no means defeated.