In conversation with John le Carré John le Carré is 88 now, and 25 novels, 10 films and 6 TV adaptations later, he has new villains: The people trying to take Britain out of the European Union. The author talks with Mark Phillips about his latest novel of intrigue, "Agent Running in the Field," which examines how the British public is being "bamboozled by people with private interests" in the push for Brexit.