Dr. Barnaby publicly accused the British Government of gross stupidity and irresponsibility, to use his words, in granting BNFL permission to operate a mixed oxide fuel plant at the Sellafield site. He pointed out that the plutonium in the MOX could be used to produce nuclear explosives. He explained that, if terrorists were to get hold of the MOX, they could easily chemically separate the plutonium and uranium oxides and use the plutonium oxide in a crude nuclear explosive. He said very little expertise was required and that most people with one or two years' experience dealing with explosives could do it. He also said MOX was particularly vulnerable to acquisition by terrorists, especially during transportation.