South Korean President Moon Jae-in's special envoys -- (from L to R) Kim Sang-gyun, a senior official at the National Intelligence Service (NIS), NIS chief Suh Hoon, Moon's top security adviser Chung Eui-yong, Vice Unification Minister Chun Hae-sung and Yun Kun-young, an official from the presidential office Cheong Wa Dae -- pose for a photo at a military airport in Seongnam, just southeast of Seoul, on March 6, 2018, after returning home from a two-day trip to North Korea on a mission to broker denuclearization talks between the North and the United States. (Pool photo) (Yonhap) (END)