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9th April 2025 (9 Topics)

Iran-US set for ‘Nuclear’ talks

Context

Tensions between Iran and the United States over Tehran’s nuclear programme have resurfaced with renewed diplomatic activity. Now recently, Iran confirmed that indirect talks with the US will take place, mediated by Oman. This follows a public announcement by former US President Donald Trump, who claimed direct talks were already underway—claims later refuted by Iranian sources.

Background

  • In 2015, Iran agreed a deal with the US, UK, France, Germany, Russia and China. It was called the Joint Comprehensive Plan of Action (JCPOA).
  • Under its provisions, Iran would limit its nuclear ambitions - and allow in international inspectors - in return for getting economic sanctions lifted.
  • But Trump pulled the US out of the deal in 2018, claiming it rewarded terrorism by funding Iran's proxy militias such as Hamas and Hezbollah. The US re-imposed sanctions.
  • Iran subsequently ignored some of the deal's restrictions and enriched more and more uranium nuclear fuel.
    • Iran could soon have enough weapons' grade uranium to make a nuclear warhead.
    • The International Atomic Energy Agency estimates Iran’s stockpile of uranium enriched to 60% purity had increased sharply since December.
    • Reaching 90% enrichment – the threshold for weapons-grade material – is relatively easy from that point.

Fact Box: Uranium

  • Uranium can have nuclear-related uses once it has been refined, or enriched.
  • Uranium ore is enriched to power nuclear reactors or build nuclear warheads.
  • This is achieved by increasing the content of its most fissile isotopes, U-235, through the use of centrifuges - machines which spin at supersonic speeds.
    • Low-enriched uranium, which typically has a 3-5% concentration of U-235, can be used to produce fuel for commercial nuclear power plants.
    • Highly enriched uranium has a purity of 20% or more and is used in research reactors. Weapons-grade uranium is 90% enriched or more.
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