Eliot Spitzer: Sheriff of Wall Street on capitalism

Once upon a time they talked of him as a future president of the United States - Eliot Spitzer made his name as the so-called Sheriff of Wall Street, an Attorney General who went after corrupt businessmen no matter how powerful they were.

Now a 90 minute documentary shown by Storyville on BBC4 tells his story and how his crusade made him powerful enemies - so that when he fell, he fell like Lucifer, caught using prostitutes.

Jeremy Paxman asked Mr Spitzer about capitalism for BBC's Newsnight.