Why does Trump want to transfer Cold War-era plutonium to nuclear start-ups?
The Trump administration wants nuclear start-ups to use Cold War plutonium as reactor fuel, but non-proliferation experts warn it raises security risks.
Intelligence analysis by GPT-5.4 Mini
Washington is considering letting private nuclear start-ups use part of the US's 99 tons of stored military plutonium for small reactors. Supporters frame it as a way to boost nuclear power and reduce reliance on Russian uranium, while critics warn it increases proliferation and transport risks.
The US has a huge pile of old nuclear material left over from the Cold War. The Trump administration wants some start-ups to use part of it like fuel for new reactors.
Supporters say this could help make more electricity, especially for big computer systems that use a lot of power. It could also help the US rely less on fuel from Russia.
But other experts are nervous. Plutonium is dangerous stuff, like keeping a tiny but very harmful poison in many moving boxes instead of one locked safe. They worry it could be harder to guard and could send the wrong message to other countries.
Analysis
What the administration is proposing
The Trump administration has picked several nuclear start-ups to enter advanced negotiations over access to some of the 99 tons of plutonium stored by the United States at highly secure sites. The material was produced for nuclear weapons during the Cold War, and the idea is to repurpose it as fuel for small modular reactors.
Why the idea is back
France 24 says the issue has been revived after decades of failed attempts to find a disposal solution. Past efforts to convert the stockpiles into energy did not work, and a later plan to bury them safely in New Mexico stalled because it was too expensive and complicated. The article says Trump has taken a different route by bringing in the private sector, in line with a broader push for nuclear expansion.
The energy and geopolitical logic
Experts quoted in the piece say one driver is the growing electricity demand linked to AI data centres. Another is geopolitical: the US wants more reactor fuel without relying on enriched uranium from Russia, which has been the main supplier for these reactors. Start-ups, including Franco-Italian company Newcleo, argue they need alternative fuel sources quickly.
Why critics are worried
The article says non-proliferation specialists see major risks. Plutonium is described as extremely toxic and much easier to use for weapons than enriched uranium. Critics argue that moving it into private hands would increase transport routes and the number of people handling it, raising the chance of theft or loss. They also warn that the signal to other countries could be damaging: if the US uses plutonium this way, others may feel justified in doing the same.
Key points
- The Trump administration has selected five nuclear start-ups for advanced negotiations over access to US plutonium stockpiles.
- The plutonium was produced for nuclear weapons during the Cold War and is stored at highly secure sites.
- Supporters say the plan could help power small modular reactors and reduce dependence on Russian uranium.
- Non-proliferation experts warn that handling and transporting plutonium increases security and weapons risks.
- Critics also say the move could weaken the US message on nuclear disarmament.


