How and what kind of media Americans consume has changed a great deal in the last decade.

The time spent watching TV, listening to radio, reading newspapers and magazines are all down while the use of mobile devices is up by 250%.

At the same time, with so many choices for content, a polarized nation often goes to the media where they hear news or opinions that agree with their own – increasing the polarization.

With us today's Smart Talk to discuss these changes and their impact is Alison Dagnes, a professor of political science at Shippensburg University, who has authored three books Super Mad at Everything All the Time: Political Media and Our National Anger, Politics on Demand: The Effects of 24-Hour News On American Politics and A Conservative Walks Into a Bar: The Politics of Political Humor.

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