“Americans are better educated now than ever, but the distribution of people with college degrees is growing increasingly unequal,” write Roberto Gallardo and Bill Bishop in the Daily Yonder. “And the clustering of people with higher education is creating greater disparities in regional incomes and unemployment.” Their article includes three U.S. county maps showing how much above or below the national average each county has been in terms of number of adults with a college degree since 1990. Via David Brin.