Sir

Bruce Lahn and Lanny Ebenstein (Nature 461, 726–728; 2009) state “Some scholars have even called for a halt to research into [genetically based group differences] because of potential misuse of information”, referring to a Commentary of mine on race, gender and intelligence (Nature 457, 786–788; 2009).

This is a misinterpretation of my argument. My view is as I wrote in that Commentary: “The problem is not that knowledge of such group intelligence differences [between black and white, men and women] is too dangerous, but rather that there is no valid knowledge to be found in this area at all.”

Lahn and Ebenstein disagree with my contention, which is of course their privilege. But they are not correct to conclude that I believe research in this or any area should be censored.