<p>Kim Jong Un is building a nuclear missile that can reach the U.S. Can he be stopped?</p>

Ep. 42: The rise and fall and rise of bitcoin

Your audio guide to everything you need to know about compelling and complex topics, from a variety of The Week's smart and witty writers, editors, and thinkers. Concise and entertaining, Seven-Minute Explainers packs a lot of information in a short amount of time.