Efforts to persuade countries to forgo uranium enrichment and plutonium reprocessing (usable but not vital in civilian power programmes, but abusable for bomb-making) have sometimes backfired.

• 让那些国家放弃铀浓缩与钚回收（虽然很有用，但对关乎国计民生的能源体系并非重要，但却对于制造炸弹却意义非凡）有时会事与愿违。