In this image from video released by Primorsky Regional Administration Press Service, North Korean leader Kim Jong Un waves from his train as he leaves Khasan train station in Primorye region, Russia, Wednesday, April 24, 2019. North Korean leader Kim Jong Un’s possible trip to Russia might be like his first one in 2019, a rattling, 20-hour ride aboard a green-and-yellow armored train that is a quirky symbol of his family’s dynastic leadership. (Primorsky Regional Administration Press Service via AP, File)