DU Contaminated With Plutonium and Neptunium

The uranium hexafluoride that the US government store at Paducah, Kentucky could be contaminated with Plutonium and Neptunium. This could be the most worrying problem to date. Plutonium and Neptunium and 'Transuranics,' that is they are larger in atomic number that uranium. All transuranics are very radioactive and very dangerous even in small quantities.

This is the same stockpile that the Department of Energy plans to give away for commercial uses, including depleted uranium ammunition.
More details at http://www.eh.doe.gov/oversight/paducah/pad_ph1.pdf