U.S. warships moving to monitor North Korea's planned rocket launch

WASHINGTON (Reuters) - The United States is shifting warships into position to track and possibly defend against a planned North Korean rocket launch while urging Pyongyang to cancel its second such attempt this year, the head of the U.S. Pacific Command said on Thursday. Related Stories Deportation looms for tech guru McAfee after heart drama Exclusive - U.S. likely to extend Iran sanction