The Reality Of Inequality

Frum acknowledges it:

Conceptually, you could imagine a highly unequal society with rapid income mobility. You could imagine a society with little mobility, but in which all classes were getting richer at approximately the same pace. America, however, is a society of widening inequality, hardening class lines, and stagnating living standards for most people. And all of these trends rely on numbers from before the economic crisis and before the election of Barack Obama.

McArdle claims that inequality is falling. Timothy Noah pushes back.