United Press International: Japan, which currently produces about 30 percent of its electricity from nuclear power, is turning to a plutonium-based fuel to supplement its existing energy programs. For the resource-poor country, recycling reprocessed plutonium – which can also be used to produce nuclear weapons – can help reduce dependence on foreign energy supplies. There are still some issues to be resolved in implementing the program, however. The process involves burning a mixed plutonium-uranium oxide, or …