Dimming hope for new diplomacy, US Secretary of State Tony Blinken accused Iran of reaching enough material for an atomic bomb in a matter of weeks “if Tehran further violates restrictions it agreed to under the 2015 nuclear deal.” This is broadly incorrect and wildly misleading. The accusation is based, superficially, on the idea that Iran has a substantial stockpile of low-enriched uranium, and they are figuring at what level that stockpile could be enough for a single bomb.
Yet weapons grade uranium is 90% or higher enriched. Iran is presently enriching mostly to 3.5% with some to 20%. They have never attempted to go meaningfully higher than 20%, and further enrichment, though conceivably possible, is an untested road for them.