The targeted killings of Iranian nuclear scientists in recent U.S. and Israeli strikes have sparked fears about the destabilization of Iran's nuclear program and the potential risks of proliferation. While Iran can replace scientists, the loss of expertise in weaponization and fuel cycle areas presents significant setbacks that are difficult to recover from, raising concerns about the security of nuclear materials and knowledge.
Despite ongoing disruptions, Iran still possesses enriched uranium, with over 200 kilograms enriched to 60%, enough for multiple potential weapons if further processed. The strikes have hit several key facilities involved in nuclear weapons development, complicating Iran’s capabilities, though the regime maintains that it will rebuild and strengthen its nuclear infrastructure. Experts warn that internal instability or government collapse could lead to theft or diversion of nuclear materials, potentially increasing the risk of proliferation or nuclear terrorism.
The impact of these strikes on Iran’s long-term nuclear capability remains uncertain, as key scientists involved in weaponization work have been targeted, and their replacements may be reluctant to engage under threat. While the risk of non-state actors acquiring nuclear material is currently low, the loss of expertise and ongoing clandestine operations pose strategic challenges for international security authorities.