GOP and Democratic candidates made a final push to rally support and encourage voter turnout before Thursday's Iowa caucus. Journalists discuss how the decision to postpone elections in Pakistan may impact the region's stability. Jeffrey Brown reports on the HBO series 'The Wire,' which looks at the troubled streets of Baltimore, Md., through an unusual lens. The Marine Corps announced this week that two Marines would be court-martialed for their involvement in a 2005 incident in Haditha, Iraq, that saw Iraqi civilians killed.moreless
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