“It was easier to ignore the consideration of paternal genes then than it would be now. We did not then consider ourselves held in the genetic trap. We thought each infant was born pure and new and holy: a gold baby, a luminous lamb. We did not know that certain forms of breast cancer were programmed and almost ineluctable, and we would not have believed you if you had told us that in our lifetime young women would be subjecting themselves to preventative mastectomies.”