text: To say that DNA testing proves there was no first couple is debatable (the existence of "Mitochondrial Eve" would actually argue otherwise) , but all that shows theologically is that the story of Adam and Eve is just a myth. Which just about all Christians, save the creationists, accept.
  
  Yes, Augustine did say some highly dubious things about original sin, things such as it being transmitted from generation to generation through lust, as if it were a venereal disease. I prefer Aquinas' thought, that original sin is more a state of fallen human nature. See Summa Theologica, I-II, q 82 art. 4