SEOUL -- The KakaoTalk chat app profile of South Korea's Prosecutor General Yoon Seok-youl reads: "Be calm and strong."
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South Korean President Moon Jae-in, left, and Prosecutor General Yoon Seok-youl greet each other during a meeting at the president's office in Seoul in December last year. © Yonhap/Kyodo
SEOUL -- The KakaoTalk chat app profile of South Korea's Prosecutor General Yoon Seok-youl reads: "Be calm and strong."