Thorium reactors produce isotopes that can be converted into U238, which is less desirable than U235 for weapons purposes, but can be converted into a usable if

Thorium reactors produce isotopes that can be converted into U238, which is less desirable than U235 for weapons purposes, but can be converted into a usable if annoying and expensive to manage bomb due to its high gamma production. https://www.foe.org.au/anti-nuclear/issues/nfc/power-weapons/thorium https://www.foe.org.au/anti-nuclear/issues/nfc/power-weapons...