Assertion: fermium's isotope | /r/AtLocation | recent test
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text: In fact, our first news that something very unusual had happened came when Glenn T. Seaborg received from Washington, D.C., a telegram, which said that the heretofore unknown isotope of plutonium with mass 244 had been found in a recent test and therefore its existence was now classified secret even if it were to be produced by any other nonsecret means!