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The Beer Experiment

In theory, a beer poured at nearly 12,000 feet above sea level would have quite a head on it -- far more foam than at sea level. Intrepid NPR science reporter Joe Palca offers a Morning Edition report on the results of an experiment that began in the Andes Mountains and concluded in Washington, D.C.

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What's at stake and candidate profiles for statewide races and competitive primaries in Allegheny County.