South Korean police said Wednesday that a man in his 40s has been arrested for threatening to murder Han Dong-hoon, the chairman of the emergency leadership committee of the ruling People Power Party. The suspect wrote the online post at around 9:40 p.m. on Tuesday, vowing to attack the ruling party's interim leader during his visit to Gwangju, according to Gwangju Gwangsan Police Station. Han is slated to visit...