People watch a screen showing images of (L-R) South Korea's president Moon Jae-in, U.S. president Donald Trump, China's leader Xi Jinping, and North Korea's leader Kim Jong Un at a railway station in Seoul on May 11, 2018. KIM SUE-HAN/AFP/Getty Images
Russia is a riddle wrapped in a mystery inside an enigma. Winston Churchill
Churchill’s famous quote is less applicable to Putin’s Moscow than it was to Stalin’s, but the national ability to puzzle observers is now characteristic of Kim Jong-un’s Pyongyang.