People have often complained that the country’s Supreme Court isn’t diverse enough: not enough women and not enough minorities. Still, it has improved. There are three women on the court now, one of them Hispanic. And there’s one African-American justice. Yet, while the court isn’t all white men anymore, there are other kinds of diversity that aren’t as obvious as skin color. For example, all the current justices went to Harvard or Yale law schools, and all but one were judges before being appointed. Is this a problem?