On this edition of Radio Free Acton,we talk with John Lauck—founding president of the Midwestern History Association, the associate editor and book review editor of the Middle West Review, and an adjunct professor of history and political science at the University of South Dakota—about his new book on the American Midwest, “From Warm Center to Ragged Edge.” Then Bruce Edward Walker shares his review of the latest work from former Pink Floyd frontman Roger Waters on our cultural segment, Upstream.

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