Robert E. May, the author of Slavery, Race, and Conquest in the Tropics, sat down with us to discuss the complex causes of the Civil War, including the little-studied debate between Abraham Lincoln and...

Craig Gibson, the author of Behind the Front, describes the arduous process of historical research and takes us inside an unexpected breakthrough.

David A. Schweidel, the co-author of Social Media Intelligence, outlines the terms of service we agree to when we search in Google, log in to Facebook, and Tweet, and how today's social media innovators may be invading our privacy and learning more about us than we'd like.

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