photo of a Minuteman III missile launchWhy, asks Elisabeth Eaves, is the U.S. spending $100 billion on a new nuclear weapon? Eaves (@elisabetheaves) explores the complex answers to this question in a feature for the Bulletin of the Atomic Scientists, taking us down to missile silos, into the communities that have come to rely on them, through the halls of Congress, and into the C-suites of one of the country’s largest defense companies. Image: Wikimedia Commons