North Korea Can Make More Uranium for Nuclear Bombs Than Previously Thought

SEOUL—North Korea has the capacity to make more base ingredients for nuclear bombs than previously believed, according to new research, suggesting the Kim Jong Un regime possesses the potential to accelerate the earliest stages of production.

The nation’s output of uranium—a fissile material for nuclear weapons when enriched—is just a fraction of what could be produced, according to new research from Stanford University’s Center for International Security and Cooperation.