'Coming Apart': Greatest Inequality in America Is Cultural

Robert Siegel talks to Charles Murray about his book, "Coming Apart: The State of White America, 1960-2010." Murray says the greatest source of inequality in America isn't economic, it's cultural. He contends that a large swath of white America — poor and working-class whites, who make up approximately 30-percent of the white population — is turning away from the core values that have sustained the American experiment.