A Closer Inspection of New North Korean Sanctions

After weeks of negotiations and in the wake of its nuclear test on Jan. 6 and the subsequent missile test on Jan. 7, the U.N. Security Council has voted unanimously to impose the toughest sanctions yet on North Korea. But the newer, stricter sanctions will be just as difficult to enforce as the older, softer ones so long as China -- North Korea's economic benefactor -- has an interest in keeping Pyongyang stable. And even if the sanctions are enforced, they may not deter Pyongyang's nuclear ambitions....