Marketplace Morning Report for Tuesday, January 3, 2012

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Episode Description 
Today's Iowa caucuses mark the start of the 2012 election season. While the car brand Cadillac is expecting a strong year ahead, with a focus on becoming a global brand -- but Ford's Lincoln isn't going to be quite so lucky. Manufacturing hiring is finally picking up, but this time around companies are looking for more skilled workers. And Steve Chiotakis heads to the junk yard with Paddy Hirsch to understand junk bonds.