Adam Gopnik warns of our tendency to normalise evil behaviour. What may pass for entertainment in Mafia movies, must be seen through a different lens in real life. "The risk of crime is not crime alone, but the abyss that opens at our feet when once we have decided that the rules that count for other people don't count for us." Producer: Sheila Cook
Sound: Peter Bosher
Production coordinator: Liam Morrey
Editor: Richard Fenton-Smith