03/28/2008 02:45 am ET Updated May 25, 2011

4 Car Bombs Kill At Least 23 As Defense Secretary Gates Pays Surprise Visit To Iraq

Car bombs in Baghdad and three northern Iraqi cities killed at least 23 people and injured more than 40 others today as Defense Secretary Robert M. Gates arrived for an unannounced visit with senior Iraqi officials.

The car bombings, including a particularly deadly suicide car bomb attack on a crowded street in eastern Baghdad that killed more than a dozen people, served as a vicious reminder that the months-long decline in daily violence was not a sure harbinger of any kind of lasting peace.

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