arms-control
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Arms Control Association (status factsheet) · United States · Iran's enriched uranium goes dark to inspectors after the war
Lays out the post-strike picture: Iran could have made a first weapon in months before June 2025 but now needs more than a year and faces new uncertainties, while the 440.9 kg of 60% HEU remains unverified — neither eliminated nor accessible.
“Before the strikes Iran could have produced a first weapon within months; today it would need more than a year and faces significant new uncertainties.”