https://apnews.com/d6ef35b20b4c48f1ac46a9302ac88c07

SEOUL, South Korea (AP) — An unknown number of nuclear warheads. Stockpiles of weapons-grade plutonium and highly enriched uranium. ICBMs. Weapons factories — and the scientists who work at them.

The list of what it would take for the "complete denuclearization" of North Korea is long.