North Korea’s tubby tyrant Kim Jong Un traveled to China with his own private toilet designed to protect his DNA and any clues about his health, according to Japanese and South Korean intelligence — as his aides were also spotted meticulously cleaning the room where he met with Russian President Vladimir Putin. The secretive lavatory was located on his green armored train that took him to Beijing on Tuesday for the country’s largest-ever military parade, marking the 80th anniversary of the end of World War II. “The physical condition of the supreme leader has a major impact on the North...