Vladimir Putin's grab of Crimea has exposed the paradoxes in American attitudes toward foreign policy.
Congress has been unusually united in condemning the Russian leader's aggression and calling for his isolation. His belligerent offensive has been denounced by such liberals as Sens. Chris Murphy, D-Conn., and Dick Durbin, D-Ill., and by many conservatives, including Sens. John McCain, R-Ariz., and Ron Johnson, R-Wis.