visit from president xi. the first time a japanese leader has deemed it important enough to visit in 14 years. north korean workers seen sprucing up the friendship tower in pyongyang. >> it's quite significant and will be real ammunition for kim jong-un to show people powerful he is. >> the meeting comes just day before the summit in japan. where president trump, xi and putin will be try iing to yield influence. kim has met with xi several times in china. had met with president trump pu putin who offered to be a go between. >> so kim is now able to play each leader off against the other two and reap the benefit frs the other three. zbr kim is promising denuclearization for a lifting of sanctions.