Trump taps Exxon CEO Tillerson as top U.S. diplomat

By Steve Holland WASHINGTON (Reuters) - U.S. President-elect Donald Trump announced Exxon Mobil Corp Chief Executive Officer Rex Tillerson as his choice for secretary of state on Tuesday, praising him as a successful international dealmaker who leads a global operation. Tillerson's experience in diplomacy stems from making deals with foreign countries for Exxon, the world's largest energy company, although questions have been raised about his relations with Russia. "He will be a forceful and cle