situation-specific. Such a two-stage approach could allow the technical parts of the problem to be separated from the non-technical.

Warren (Pete) Miller (Texas A&M University) posed three questions that would be useful to investigate in more detail in the National Academies study that will follow this workshop, noting that the DOE is currently working on an analysis for the back end of the nuclear fuel cycle, to allow them to down-select from a myriad of potential technologies. These questions are:

•   Among the many criteria that need to be considered in making this decision (e.g., cost and waste management), how important should proliferation resistance be?

•   Should proliferation resistance be removed as a criterion for down-selection, given that the tools cannot currently discriminate between different options for the back end of the fuel cycle?

•   How can analysis tools be improved or new ones developed to provide more effective differentiation on proliferation risk?

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