Suicide attack kills 31 Shi'ite pilgrims in Iraq

A suicide bomber blasted a truck carrying Shi'ite pilgrims returning from a major religious commemoration Sunday, killing at least 31 people a day after Iraqi leaders warned sectarian violence could eventually spread around the region. The truck was among the convoys carrying millions of pilgrims home from Karbala in southern Iraq, where Shiites attended an important religious event. Hundreds were killed by bombers and gunmen while heading to the annual gathering.