North Korean dictator Kim Jong Un recently announced a surprise visit to China, where he was welcomed with considerable warmth and vaguely promised that his country would de-nuclearize at some point. It's a small sign of how the center of world politics is shifting away from the United States and towards Asia. Coincidentally, on that same day Amnesty International released a report on a Chinese mining operation that almost certainly worsened a flash flood that wrecked a small, poor village in Mozambique in 2015.