Shields, Brooks on Iowa Debate, 'Rattling Sabers' Over...

Aired: 12/16/2011 | 0:12:43 | Clip
Syndicated columnist Mark Shields and New York Times columnist David Brooks discuss the week's top political news, including the latest GOP presidential debate in Iowa, candidates' views on how the U.S. should deal with Iran, more brinksmanship in Congress and the formal end of the American involvement in the Iraq War.