The letter said the plant would not enrich uranium beyond the 5% level suitable for civilian energy production. That would be substantially below the threshold of 90% or more needed for a weapon.

信中说，该工厂只生产适合于民用能源项目的浓缩铀，纯度将不会超过5%的水平，这将大大低于制造武器所需的90%或以上水平的门槛。

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Special Qualities: Plant, Weapon Immunity, Fire Resistance.

特别性质：植物，武器免疫，抗火性。

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Is there a danger that material from a U.S. nuclear plant could be stolen and used in a weapon?

FORBES: What Are The Most Important Things To Know/Understand About Nuclear Energy?