TOPSHOT - Yoon Young-chan (L), a senior South Korean presidential secretary for public relations, looks at a picture of the summit between South Korean President Moon Jae-in and North Korean leader Kim Jong Un during a photo exhibition to support the upcoming inter-Korean summit, in downtown Seoul on September 17, 2018. - South Korean President Moon Jae-in will fly to the North Korean capital on September 18, for his third summit with the North's leader Kim Jong Un as a rapid diplomatic thaw takes hold on the peninsula despite stalled progress in denuclearisation talks between Pyongyang and Washington. (Photo by Jung Yeon-je / AFP)