During her confirmation testimony last week, Susan Rice, the new United States ambassador to the United Nations, said something both intriguing and significant. After describing the various challenges America faces in the wider world, she called for the world to move past old divisions. "We cannot afford to be burdened with labels such as 'rich' or 'poor,' 'developed' or 'developing,' 'North' or 'South,' or 'the Non-Aligned Movement.' In the 21st century, these false divisions rarely serve anyone's interests." At first glance, this might strike the hard-headed realist as naïve.