4-29-13

Todd Gitlin, who teaches journalism and communications at Columbia University, is the author of "The Whole World Is Watching," "Media Unlimited," and many other books including, most recently, "Occupy Nation: The Roots, the Spirit, and the Promise of Occupy Wall Street."

2-25-13

William J. Astore, a retired lieutenant colonel (USAF), now teaches at the Pennsylvania College of Technology. His books and articles focus primarily on military history and include Hindenburg: Icon of German Militarism (Potomac Press, 2005). He may be reached at wastore@pct.edu.