Friday, September 24, 2004 at 07:16 JST SEOUL — North Korea threatened Thursday to turn Japan into a "nuclear sea of fire" if the United States attacks it with nuclear weapons, South Korea's Yonhap News Agency reported, quoting a North Korean newspaper report. Rodong Sinmun, the newspaper of North Korea's Workers Party of Korea, said U.S. military bases in Japan would come under its attack in the event of a nuclear war. "If the United States ignites a nuclear war, the U.S. military bases in Japan would serve as a detonating fuse to turn Japan into a nuclear sea of...