What happens if you take the warring parties of radio's biggest feud and give them their own show? Radio 4 is about to find out as Eddie Mair and Robert Peston join forces to spring surprise guests on each other in a unique late night interview programme. Expect spontaneous discussions with a wide array of interesting figures. Eddie and Robert have each chosen three guests of personal interest to them- all in the public eye - who they feel are worthy of a late night interview slot, keeping it secret from the other which guests they have chosen until the interview itself. Tonight is Robert's third and final guest - Alan Rusbridger.