Iran possesses roughly 440 kilograms of uranium enriched to 60 percent purity, significantly exceeding the 3–5 percent level necessary for civilian nuclear energy, yet remaining below the 90 percent level required for military applications. The transition from 60 to 90 percent enrichment occurs at a considerably accelerated pace compared to the initial phase of enrichment. Experts in nuclear proliferation suggest that Iran could generate sufficient weapons-grade material for a single nuclear weapon in as little as two weeks and could theoretically produce between 8 to 12 nuclear warheads from its existing reserves if it achieves the final enrichment level. Reports indicate that Iran's Supreme Leader has mandated that the enriched uranium must remain within the country's borders. The current 60-day negotiation period presents a crucial window for the United States and global powers to deter Iran from attaining the nuclear weapons threshold.
