In November 1998, the scientific journal Nature ran a headline that would have seemed more at home in The National Enquirer: JEFFERSON FATHERED SLAVE’S LAST CHILD. The article was based on a study of DNA tests on descendants of Sally Hemings, a slave owned by Thomas Jefferson. It received widespread coverage in newspapers and magazines and on radio and television. Two months later, the geneticist Eugene Foster, who had led the original study, clarified his findings: He had not proved that Thomas Jefferson was the father of Sally’s son Eston Hemings, merely that some undetermined Jefferson male was. The retraction received much less notice.