This malignant persistence since September 11th is the biggest surprise of all. In previous decades, sneak attacks, stock-market crashes, and other great crises became hinges on which American history swung in dramatically new directions. But events on the same scale, or nearly so, no longer seem to have that power; moneyed interests may have become too entrenched, elites too self-seeking, institutions too feeble, and the public too polarized and passive for the country to be shocked into fundamental change.