U.S. satellites find activity at N. Korea nuclear test site: report

U.S. spy satellites have detected activity at North Korea's underground nuclear test site for the first time in several weeks, CNN reported Tuesday, citing two U.S. officials.The officials were quoted as saying it is not yet clear whether the activity signals that a sixth nuclear test is imminent.The United States is on alert ahead of a high-level U.S.-China diplomatic and security dialogue scheduled for Wednesday in Washington, at which pressure on North Korea is expected to be a key discussion topic.CNN quoted the U.S. officials as saying a sixth nuclear test by North Korea would signal t…READ FULL ARTICLE