We now have lots of measures of diversity in the academy, by which I mean heterogeneity in race, gender, geography, political attitudes, etc. At this weekend's Stanford Conference on Academic Freedom, much discussion focused on the chasm between the political composition of the academy and the general population. A debate ensued as to whether/how this is related to academic freedom and whether/how public policy should advance affirmative action for "deplorables" (we deplorables use that t...