Home United States USA — Korea As Mattis prepares for Asia visit, North Korea starts reactor United StatesUSA — Korea As Mattis prepares for Asia visit, North Korea starts reactor By admin - January 30, 2017 515 0 SHARE Facebook Twitter Hong Kong (CNN) North Korea appears to be restarting a plutonium reactor just as US Secretary of Defense James Mattis prepares to visit neighboring South Korea and Japan. Source: DigitalScope/38 North/Getty Images Sentiment rank: 3.2