A man watches a TV showing file footage of a North Korea's ballistic missile at Seoul Railway Station in Seoul, South Korea on April 16, 2017. A North Korean missile exploded during launch Sunday from the country's east coast, U.S. and South Korean officials said, a highprofile failure that comes as a powerful U.S. aircraft carrier approaches the Korean Peninsula in a show of force. The letters on the top read North Korea, Fire missile. Photo AP Photo  Ahn Youngjoon    Copyright 2017 The Associated Press. All rights reserved.