Recycling historical perspective

R A. Burnham, The Rendering Industry A Historical Perspective, in D. A. Franco and W. Swanson, eds.. The Original Recyclers, The Animal Protein Producers Industry, The Fats and Proteins Research Foundation and The National Renderers Association, Alexandria, Virginia, 1996. 

From a proliferation and security perspective, it would be preferable to destroy or use this plutonium, rather than entomb it, presuming no access ( intrusion ) or use is allowed or possible for a historic timescale of a miUion or so years. Interestingly, LWR spent fuel is at about 0.9% fissile, which is why France can and does recycle today, and why this used recycled fuel could also be recycled again directiy again in CANDU (in the so-called DUPIC cycle). 

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