https://www.wsj.com/articles/irans-increasingly-short-path-to-a-bomb-nuclear-deal-biden-trump-jcpoa-11638887488?mod=opinion_lead_pos4
The U.S. and Europe are still begging Iran to return to the increasingly irrelevant 2015 nuclear deal. But a new report on Iranian nuclear advances shows how far Tehran’s program has come—and why President Biden should rethink his strategy.
Donald Trump withdrew from the 2015 Joint Comprehensive Plan of Action, the nuclear accord’s formal name, in 2018 and began his “maximum pressure” sanctions campaign. The economic restrictions weakened the regime and gave the U.S. more leverage. Yet Tehran waited out Mr. Trump, betting that he would lose the election, as he did.
Meanwhile, Tehran activated advanced centrifuges, while stonewalling international nuclear inspectors, enriching uranium at higher concentrations and stockpiling more of it. Perhaps most troubling is how much the “breakout” time to a nuclear weapon has shrunk thanks to Iran’s better understanding of advanced centrifuges, which produce enriched uranium more efficiently.
“Unless compensatory steps are taken, such as destroying rather than mothballing advanced centrifuges, a renewed [nuclear deal] will not maintain a 12-month breakout timeline to produce enough weapon-grade uranium for a nuclear weapon,” David Albright and his colleagues at the Institute for Science and International Security write in a Dec. 2 report. “If Iran mothballs its advanced centrifuges, timelines of only five to six months are likely.”