NYTimes columnist: Income inequality, the new global warming. But Ryan Streeter draws a distinction between earned and unearned success. That's the real unfairness of crony capitalism. And then there's the contribution of declining marriage rates to income inequality.

The steadily dropping marriage rate both contributes to income inequality and further entrenches it.. . . In 1960, the most- and least-educated adults were equally likely to be married. Now, nearly two-thirds of college graduates are married, compared with less than half of those with a high school diploma or less. Those with less education are less likely to ever marry and more likely to divorce if they do.