Two car bombs exploded in Baghdad on Monday, killing a bystander and wounding half a dozen others. Gunmen shot down six people, including a child, in a market area of the southern city of Basra, police said. Also Monday, U.S. Secretary of State Condoleezza Rice and British Foreign Secretary Jack Straw urged Iraqi leaders to form a government as soon as possible to curb the bloodshed and rein in sectarian militias behind much of the violence. Violence between Shiite and Sunni Muslims has escalated since the Feb. 22 bombing of an important Shiite shrine in Samarra. Full Story