ROGER LOWENSTEIN reported for The Wall Street Journal for more than a decade. His work has appeared in The Wall Street Journal, Bloomberg , The New York Review of Books, Fortune, The New York Times Magazine, and other publications. His books include Buffett, When Genius Failed, Origins of the Crash, While America Aged, and The End of Wall Street. He has three children and lives with his wife, Judy Slovin, in Newton, Massachusetts.