State media calls North Korea's nuclear weapons a "treasured sword of justice."
Pyongyang has released commemorative stamps and built monuments in honor of its ballistic missile tests, while nuclear and rocket scientists have been named national heroes.
For Kim Jong Un, fully giving up nuclear weapons would mean a dramatic reversal for an authoritarian leader who has not only staked his security on his nuclear arsenal, but also spent years publicly celebrating such weapons as an integral part of his regime's legitimacy and power.
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