In his comments to reporters, US President Donald Trump warned that 'all hell will rain down' on Iran if it tries to get a nuclear weapon. This was reported by Qazaqyia.kz citing The Guardian.
'The only thing that really matters to me is Iran will never have a nuclear weapon, and it says it loud and clear,' he said, referring to the agreement with Tehran.
As my colleague Graham Russell notes in this useful explainer, Iran has long maintained its nuclear program is peaceful and has not publicly committed to giving up the enriched uranium, which is believed to be buried under three nuclear sites that were badly damaged by US strikes last year.
Trump faces significant political pressure to secure a better deal on this issue than the one he scuppered during his first term. He withdrew the US from a 2015 multilateral Iran deal, negotiated by Barack Obama, that lifted sanctions on Tehran in exchange for limits on its nuclear program, including international inspections.
Iran responded by ramping up its enrichment of uranium, producing more than 400kg of material at close to bomb-grade purity. The eventual fate of that uranium is likely to be a key negotiating point during the upcoming broader talks.