 On Wednesday, a carpet of floating fish corpses covered the waterway, littering stretches of the river. Environmental officials say it will take years to recover. South Korea's President Thursday appointed a former North Korean diplomat as a vice minister, the highest-level government job for any of the thousands of North Koreans who have resettled in South Korea. Tae Yong-ho was a minister of the North Korean embassy in London when he defected to South Korea in 2016. Tae is the highest-ranking North Korean diplomat