“…119 As a result, it has been relatively safe, at least in the United States, to assume that race correlated with ancestry, although even in the United States the admixture of races is significant. 120 There are good reasons, however, to be increasingly dubious about the strength of this correlation. The correlation has never been exact, and as more people from East Africa, the Middle East, and South Asia -all areas with more admixed populations -come to the United States, the genetic distinctiveness of "black," "white," and "Asian" groups will lessen.…”