HE eluded capture for 43 years. But in the end he was betrayed by the need for clean underwear. Bernardo Provenzano, the Mafia “boss of bosses†who was arrested this week, was traced to his Sicilian hideaway by police who tracked a delivery of laundry. Provenzano, who had not been seen since going into hiding in 1963, asked his wife to send him “a pack of washed and ironed clothes†— underpants, shirts, and socks. Police intercepted a telephone conversation between mafiosi indicating that Provenzano’s wife, Saveria Benedetta Palazzolo, who runs a laundry in Corleone, was about to return her...