FILE PHOTO: North Korean leader Kim Jong Un shakes hands with U.S. Secretary of State Mike Pompeo in this May 9, 2018 photo released on May 10, 2018 by North Korea’s Korean Central News Agency (KCNA) in Pyongyang. KCNA/via REUTERS ATTENTION EDITORS – THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. NO THIRD PARTY SALES. SOUTH KOREA OUT.