He writes, in a post entitled “The Practical Costs of Condemning Openness to Distressing Answers on Factual Questions“:

I would love it if all of us could one day say, with confidence, that there is no difference in intelligence among racial groups. If that is factually true, it would be a truth which would have lots of good social consequences.
I expect that it’s unlikely that we could say this with great confidence any time soon, simply because scientists are only beginning to understand the precise genetic mechanisms that may yield differences in intelligence. But we might be able to say it with some confidence, and possibly increasing confidence. (At the same time, for the reasons I mentioned below, I can’t rule out the possibility that this will prove not to be so, for the simple reason that the world is as it is, and I can’t rule out possible answers to scientific questions just because I don’t like them.)

He also provides thoughts on the dean’s ridiculous reaction to the flap.