Sheldon Richman discusses what he calls "the nonintervention principle," a corollary of libertarianism's nonaggression principle. Richman says that in the face of those who advocate foreign intervention and regime change, libertarians have a tendency to deny the claims that are being used to justify the intervention, rather than categorically opposing intervention qua intervention, no matter how bad the situation is. He acknowledges that many of these arguments are sound, so far as they go—for example, the fact that Assad is actually pretty good by regional standards—but that they can give...