WORLD North Korea says it has carried out an underground test of a hydrogen bomb, but Western observers are skeptical. What’s the big deal? (BBC) Use our resources to learn more about the U.S.’s own testing of H-bombs. Teachers, scroll down for a quick list of key resources in our Teachers’ Toolkit, including today’s MapMaker Interactive map. Discussion Ideas Hasn’t North Korea tested nuclear weapons … Continue reading Did North Korea Just Detonate a Hydrogen Bomb?