I fear we’re facing a crisis in which a chunk of working-class America risks being calcified into an underclass, marked by drugs, despair, family decline, high incarceration rates and a diminishing role of jobs and education as escalators of upward mobility. We need a national conversation about these dimensions of poverty, and maybe Murray can help trigger it. I fear that liberals are too quick to think of inequality as basically about taxes. Yes, our tax system is a disgrace, but poverty is so much deeper and more complex than that.