SYDNEY, Australia (AP) — Amid tight security, Prime Minister John Howard paid a surprise visit Sunday to Australian troops in Iraq. "The trip to Iraq is in recognition of the great sacrifice and contribution Australian personnel are making there in challenging conditions," Howard's office said in a statement. "They are following in the footsteps of countless other Australians who have served the nation in many parts of the globe." Howard's visit was for a dawn ceremony at Baghdad International Airport to mark Anzac Day, Australia's main veterans' commemoration. It was Howard's trip to Iraq since he sent 2,000 troops to...