The remaining step – slamming two pieces of HEU together to create a critical mass and an explosion – is easy: the blueprints can be downloaded from the Internet. Indeed, the “secret” of the hydrogen bomb was published in 1979 in an article by Howard Morland in The Progressive magazine, sparking a failed legal suit by the US government to suppress it.
核能需要用低浓缩铀作燃料。在同样的设施里进一步浓缩就能得到可用来制作原子弹的高浓缩铀（HEU）。剩下的步骤——将两个HEU结合在一起达到临界质量，产生爆炸——很简单：蓝图可以从互联网上下载。其实，早在1979年Howard Morland就在《进步》杂志上公开了氢弹的“秘密”，当时美国政府还提出起诉，企图查禁，不过败诉了。