Claudia Rosett proposes to kick North Korea out of the U.N. This strikes me as a perfectly sound idea in theory and one that stands no chance of coming to pass in practice. North Korea’s presence at the U.N. hasn’t contributed to peace or development; after all, U.N. membership isn’t a sine qua non for WFP aid, and most the focus of diplomacy is on the six-party talks, an opera that alternates between long intermissions and broken crystal. The fact...