The White House is attempting to minimize Solicitor General Elena Kagan's role in banning military recruiters from Harvard Law School while she was dean. The Obama team is using a variation on the Nuremberg defense, that Ms. Kagan was only following the established policies, and that this episode actually shows her at her most pragmatic. But far from simply implementing existing Harvard policies, Ms. Kagan was the prime mover in seeking to have the policies changed to keep recruiters out. Ms. Kagan explained the motives for her drive to ban recruiters from campus in a Sept. 2005 message to students...