World News Podcast - January 4th, 2012

In tonight's episode, the fallout from last night's Iowa caucuses.  One GOP candidate drops out while the rest move on the New Hampshire.  Next, unions in California are after Kim Kardashian, claiming she should pay more in state taxes.  Also, a young mother's 911 call while two men break into her home.  They don't know she's armed.  After that, ABC Chief Medical Editor Dr. Richard Besser talks about a new study on neck pain.  Finally, exotic zoo animals across the country prepare for cold weather.

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