We already know they have compact nuclear warheads https://www.washingtonpost.com/world/national-security/north-korea-now-making-missile-ready-nuclear-weapons-

We already know they have compact nuclear warheads https://www.washingtonpost.com/world/national-security/north-korea-now-making-missile-ready-nuclear-weapons-us-analysts-say/2017/08/08/e14b882a-7b6b-11e7-9d08-b79f191668ed_story.html https://www.washingtonpost.com/world/national-security/north...