This hour: are too many documents classified in the U.S.? Plus, why the State Department is changing its default font. And, we'll look at the connection between exercise and spirituality.

GUESTS: 

• Matthew Connelly: Professor of International and Global History at Columbia University, author of the forthcoming book The Declassification Engine: What History Reveals About America’s Top Secrets, and principal investigator of History Lab
• Juan Villanueva: Senior Type Designer at the Monotype Studio, and co-founder of Type Electives, an online school for type design education
• Cody Musselman: Postdoctoral Research Associate at the John C. Danforth Center on Religion and Politics at Washington University in St. Louis, who is working on a book called Spiritual Exercises: Fitness and Religion in Modern America

Join the conversation onFacebook and Twitter.