Ideological "Balance" in Legal Academia

Every six months or so, law bloggers banter about the alleged "ideological" imbalance on American law faculties.  The latest round seems to have been started by Ilya Somin, a law professor at the least ideologically diverse law schools in the U.S., George Mason University (a fact which has largely worked to its advantage, I think).  Somin references one of the now standard sources for the allegation that law schools lack ideological diversity, an essay by Peter Schuck (Yale).  But Schuck's arguments, and his evidence, are really quite weak, as I brought out in a debate with Schuck a couple of years ago.  One might hope that those with an honest intellectual interest in this matter might try to respond to these objections, rather than citing Schuck and simply assuming there is a real issue here that requires redress.