The US Department of Justice (DOJ) announced in January that a Japanese national had pleaded guilty to the attempted trafficking of nuclear materials, including uranium, thorium and plutonium, from ...

The continued reprocessing of spent nuclear fuel has resulted in some nations, including the UK, accumulating vast inventories of separated plutonium and plutonium-contaminated residues, for which ...

Beginning in the late 1950s, the U.S. met this challenge by developing nuclear batteries known as radioisotope thermoelectric generators (RTGs) and producing plutonium-238 (Pu-238) as their fuel, ...