In 35 years as Manhattan DA, Robert Morgenthau has gotten along with every mayor of New York—except the current one. Mike Bloomberg, says Morgenthau, "doesn't want anybody around who doesn't kiss his ring, or other parts of his body." In a wide-ranging interview with the Wall Street Journal, the 90-year-old, who leaves office Thursday, addresses everything from his feud with the mayor to the international crimefighting role his office has played during his tenure. As usual, he pulls no punches: