The thumping defeat inflicted upon the Right-wing Popular Party in yesterday's Spanish elections was a blow for the war on terrorism. Jose Maria Aznar, the outgoing prime minister, took big risks to back the United States after September 11, and most especially to send troops to Iraq. Even his decision to take on his home-grown insurgency in the Basque country went against the grain of much elite opinion. He may well have mishandled last week's terrorist atrocities in Madrid. But whoever was responsible - whether al-Qaeda or ETA - will be pleased to have intervened so successfully in a democratic...