Kim Jong Un on Friday became the first North Korean leader to cross the border with the South after the Korean War, the latest in a series of remarkable developments emerging from his sudden embrace of diplomacy since the beginning of this year.During his meeting with South Korean President Moon Jae In, Kim at times wore a pained expression on his face, but for the most part communicated with the South's president with grand gestures.Clad in a black Mao-style suit, a smiling Kim, who is in his 30s, shook hands with the 65-year-old Moon as the two men stood on their respective sides of the d…READ FULL ARTICLE