The cost of food consumed at home was up 0.7% month-over-month in December, and 2.4% year-over-year. Go back five years, and grocery prices are up 25%. And like so many things in this economy, the rising cost hurts the poorest Americans most. Also in this episode: Americans carry credit card debt longer than they used to, two ultra-low-cost U.S. airlines make plans to merge, and we get an update from Kansas grain farmers.

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