Earlier this year, TV stations all over South Korea were ablaze with scenes of Pyongyang’s latest missile tests. It’s now clear that North Korea remains firmly resolute on pursuing a dangerous mission, even after nearly ten years of suffering the world’s disapproval on tests like this and on its human rights record. Yet, sanctions continue. The Obama Administration has issued newer, tougher sanctions, some of which have been approved by the U.N. Security Council. Supporters of sanctions hold onto the conviction that there’s a “tipping point” for the North Korean government. When that tipping...