By George Friedman Iran says it has enriched uranium. Hosni Mubarak is claiming that Shia in Sunni states are traitors to their countries. The French are in political and economic gridlock. With all these urgent things going on, it seems to us that it is time to talk of something important, something that has driven and divided American politics for centuries and will continue to do so: the argument between those who have been called idealists and those who have been labeled realists in U.S. foreign policy. When the United States was in its infancy, France experienced a revolution that was in many ways similar to the American Revolution. Some Americans wanted to support the French revolutionaries, arguing that the United States had to pursue its moral ideals and stand by its moral partner.