Is the US Russia? The question seems provocative, if not outrageous. Yet the person asking it is Simon Johnson, former chief economist at the International Monetary Fund and a professor at the Sloan School of Management at the Massachusetts Institute of Technology. In an article in the May issue of the Atlantic Monthly, Prof Johnson compares the hold of the "financial oligarchy" over US policy with that of business elites in emerging countries. Do such comparisons make sense? The answer is Yes, but only up to a point.