A North Korean man who identified himself as a civilian crossed the inter-Korean military demarcation line into South Korea on Thursday night, the South's military said.The military has taken the person into custody and is investigating his actions and intentions, South Korea's Joint Chiefs of Staff said Friday, adding it has not detected any unusual activity from the North Korean military.The man, who was detected early Thursday morning near a shallow stream close to the military demarcation line, remained in that location throughout the day, the JCS told reporters. South Korean troops off…READ FULL ARTICLE