A Broken Promise? U.S. On Track To Create 400 Nuclear Weapons Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Phil Hoover, an engineer at Sandia National Laboratories, shows off a flight test body for a B61-12 nuclear weapon. ( Jerry Redfern for Reveal ) Produced by Jillian Weinberger Produced by PRI and WNYC