A suicide car bomber killed at least three Iraqis Monday near the Green Zone housing the U.S. Embassy and Iraqi government, and the U.S. military said two American airmen died in a roadside bomb blast north of the capital. Intensive efforts continued to secure the release of kidnapped American Jill Carroll, 28, with U.S. and Iraqi authorities conducting joint operations in a bid to free the journalist. Carroll was abducted in Baghdad on Jan. 7. Full Story