SEJONG -- South Korean internet giant Naver opened its second data center in the city of Sejong on Monday, speeding up its big push to secure supremacy in the burgeoning artificial intelligence and cloud markets. Naver invited a group of reporters to its new data center, which it calls Gak Sejong, for the opening ceremony. The first of its kind, Gak Chuncheon, was set up in Gangwon Province in 2013. Located on a 294,...