Articles on 2015 nuclear deal

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People ride motorcycles past a large billboard in central Tehran on June 8, 2026. Atta Kenare/AFP via Getty Images

Trump’s US‑Iran ceasefire deal is a costly return to prewar conditions – and resolving nuclear questions will run into the ‘indivisibility problem’

Iran has emerged with its uranium enrichment knowledge intact, its stockpile buried and fresh reason to believe that only a nuclear weapon would have deterred the US-Israel attack.
A man reads an Iranian newspaper with a headline in Farsi that says, ‘The night of the end of the JCPOA,’ or Joint Comprehensive Plan of Action. Atta Kenare/AFP via Getty Images

Iran and the US appear unlikely to reach a new nuclear deal – leaving everyone more unsafe

A nuclear nonproliferation expert explains why Iran was always unlikely to return to the 2015 international agreement that limited its nuclear weapon development.
Russian Foreign Minister Sergey Lavrov, left, welcomes his Iranian counterpart Mohammad Javad Zarif, ahead of their meeting in Moscow on May 14, 2018. AP/Maxim Shemetov

The Iran nuclear deal could still be saved, experts say

It would be a heavy lift, but revising the Iran nuclear deal would have some significant upsides, according to scholars at the University of Maryland.

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