Dr. Charles Murray, F. A. Hayek Chair Emeritus in Cultural Studies at the American Enterprise Institute, joins Spencer to expand on his most recent essay for the CRB on how diversity and ethnic differences affect large democratic countries like the U.S. Dr. Murray discusses some of the evidence for his argument, as well as some ways in which these difficult truths can be applied to politics today. Plus: a reflection on the need to speak out in troubled times.