text: Seoul tells of 1982 test to extract plutonium SEOUL A week after admitting that government scientists enriched tiny amounts of uranium four years ago, the South Korean government revealed on Thursday that scientists in 1982 conducted an experiment in plutonium extraction at a state-run research 
inputs: Seoul tells of 1982 test to extract plutonium SEOUL A week after admitting that government scientists enriched tiny amounts of uranium four years ago, the South Korean government revealed on Thursday that scientists in 1982 conducted an experiment in plutonium extraction at a state-run research 