James Sackie would make a good frontman for a campaign to help ex-child soldiers. At the age of 17, he was press-ganged into one of Charles Taylor’s juvenile militias. Twenty years on, he talks movingly, in his matter-of-fact pidgin English, about the dreadful things he saw, including the day he had to stop his own baby son, JR, being whisked away as lunch for a general called Eat Human Being.