It's also not the kind of environment that fosters high-energy physicists, but we're talking about a regime that has indigenously developed nuclear weapons.
A minor quibble, but North Korea did not indigenously develop nuclear weapons - they acquired most of their knowledge and capabilities from Pakistan via the Khan network. They most certainly spent a great deal of effort internally to convert said knowledge into functional nuclear devices, but by no means did they develop everything internally.
A minor quibble, but North Korea did not indigenously develop nuclear weapons - they acquired most of their knowledge and capabilities from Pakistan via the Khan network. They most certainly spent a great deal of effort internally to convert said knowledge into functional nuclear devices, but by no means did they develop everything internally.