A U.S. soldier was killed and another injured in an ambush along a dangerous road north of Baghdad in the so-called "Sunni Triangle," a center of anti-American resistance. His death brought to 153 the number of U.S. troops killed in action since the March 20 start of war -- six more than during the 1991 Gulf War. U.S. Central Command in Tampa, Fla., said the attackers used rocket-propelled grenades and small arms in the assault staged along the road between Balad, 50 miles north of Baghdad, and Ramadi, 60 miles west of the capital. It gave no other details. New York Times