I came back from university thinking I knew all about politics and racism, not knowing my dad had been one of the youngest-serving Labour councillors in the town and had refused to work in South Africa years ago because of the situation there. And he's never mentioned it - you just find out. That's a real man to me. A sleeping lion.
Though social eugenics was discredited long ago, we still often think of the genome in quasi-eugenic terms. When we read about the latest discovery of a link between a gene and a disease, we imagine that we've learned the cause of the disease, and we may even think we'll get a cure by fixing the gene.