Spy Plane Returns From Secret Mission From Japan

Lockheed U-2 ultra high-altitude reconnaissance aircraft, also known as the Dragon Lady, returned to South Korea after spending 40 days in Japan. 

The U-2 spy planes often fly to Japan when they train with the U.S. Forces Japan, but this time they did not participate in any drills.

The government claims that they collected intelligence about the North from Kadena. However, the U-2 is capable of conducting optical surveillance only within a radius of about 100 km, which means that it is impossible to spy on the North from Japan.