Efforts To Improve Civil Aviation With U.N. Blocked By Washington 

The United States has blocked U.N. efforts to revitalize civil aviation in North Korea, reports Reuters. 

The U.N. International Civil Aviation Organization (ICAO) has been working with Pyongyang to open air routes through North and South Korean airspace. Airlines typically avoid these routes due to the threat of unannounced missile launches. 

Washington vetoed a North Korean request for U.S.-produced aeronautical charts and discouraged the U.N. agency from working with Pyongyang. ...