Car bombs killed at least 16 people and injured dozens Sunday in Baghdad and a Shiite holy city, casting doubt on U.S. hopes that formation of a new government alone would provide a quick end to the country’s violence. At least 26 others were killed or found dead Sunday, including a U.S. Marine mortally wounded in the insurgent bastion of Anbar province in western Iraq, police and the U.S. military said. Full Story