"The talk" as outlines by Mr. Derbyshire is an almost point for point recapitulation of the talk a friend of mine's father had with him around 14.
He (they) are Orthodox Jews, and his father a judge(!) and my friend told me in detail of this conversation when he was in his early 20's about his dad having a sit down with him exclusively about this topic. He explained the IQ situation and everything.
Anyway, just interesting how similar the points were.
Also, the Jews, being an oppressed minority themselves, are immune to criticism for holding or espousing or acting on such beliefs.
They are very big on protecting their children, and we should unashamedly emulate that cultural norm.