John Green has written a new, already best-selling nonfiction book on tuberculosis that asks a pointed question: Why does a fully curable disease still kill more than a million people a year? Read or listen to our conversation with @John Green at the link in our bio. Video by Stephanie Nolen, Arjun Srivatsa and Calla Kessler/The New York Times #johngreen #tuberculosis #everythingistuberculosis #tb