John Carlson, Leonard S. Spector along with FMWG Chair Miles Pomper release Occasional Paper #42 with the Center for Nonproliferation Studies. The paper discusses issues relating to separated, or unirradiated, plutonium in civilian nuclear programs — plutonium that has been chemically separated from spent nuclear reactor fuel by reprocessing but has not been reintroduced into a nuclear reactor after separation and subjected to further irradiation. The report recommends the six countries with civil separated plutonium stocks make modifications to their programs and the common issue of material management