World News Podcast - December 4th, 2013

A hijacked truck with radioactive material in Mexico is raising concerns. An arctic chill is expected to hit half the nation, with temperatures plummeting in 24 states. The search continues for a family that vanished when a plane piloted by their dad disappeared in Idaho. Philadelphia’s Strawberry Mansion, a high school considered one of the most dangerous schools in America, receives help to improve dismal conditions in classrooms. And ABC's Ron Claiborne on a hazardous fatigue drivers may face on the highway. This and more on the World News Podcast.

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