On U.S.-North Korea Talks, China May Hold the Cards

FILE -- The Sino-Korean Friendship bridge in Dandong, China, which connects China with North Korea, Dec. 25, 2018. President Donald Trump wants to maintain sanctions until North Korea disarms, but the buoyant mood in Dandong is a reminder that China, as North Korea’s main trade partner, can decide how strictly to enforce the international sanctions against it. (Lam Yik Fei/The New York Times)