TOPSHOT - This undated picture released by North Korea's official Korean Central News Agency (KCNA) on August 23, 2017 shows North Korean leader Kim Jong-Un (2nd L) visiting the Chemical Material Institute of the Academy of Defense Science at an undisclosed location. / AFP PHOTO / KCNA VIA KNS / STR / South Korea OUT / REPUBLIC OF KOREA OUT   ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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