We have scant information about this, beyond some limited information about international acquisitions and some detection of traces of highly enriched uranium (HEU) on materials brought out of North Korea. If North Korea is using HEU in its bomb design, we have little knowledge about where it comes from and how much of it they have, or could have in the future.
最令人忧心的是，我们不能排除朝鲜已成功实现武器级铀浓缩的可能性。在这方面我们掌握的信息很少，只有从国际并购中了解的有限信息和朝鲜带出材料上探测出的某些高浓缩铀（HEU）痕迹。如果朝鲜将高浓缩铀用于炸弹设计，我们对铀原料的来源及现在或未来可能的数量几乎是一无所知。