Small panel on reactor related options for the disposition of excess weapons plutonium headed by john p holdren to evaluate and make recommendations to the committee the panel report which is being published as a companion volume was subject to a separate peer review by the national academy of sciences. On july 10 the national academy of sciences nas released a major technical report on the preferred options for the disposal of weapons plutonium by using it as fuel in existing civil power reactors or by immobilizing it with existing high level radioactive wastes in glass open quoteslogsclose . management and disposition of excess weapons plutonium reactor related options uploaded by danielle steel small panel on reactor related options for the disposition of excess weapons plutonium headed by john p holdren to evaluate and make recommendations to the committee the panel report which is being published as a. Consideration of the options for disposition of weapons plutonium wpu by irradiating it in nuclear reactors or mixing it with radioactive waste streams from reactors which is the task of this report requires reference to the physics and technology of nuclear fission as applied to both nuclear power production and nuclear weapons. The timing of disposition options is crucial to minimizing both types of risks minimizing the time until the start of operations to transform the surplus wpu into forms less easily used for weapons and minimizing the time until this transformation is completed are of obvious value in reducing the direct risks of theft and diversion