How Charles deals with his notoriety ... Charles's new book, Facing Reality: Two Truths about Race in America ... Grappling with the fact of group disparities ... Threats from the left, threats from the right ... The shift in white attitudes toward race since the 1950s ... What would happen if white people revolted? ... Charles: Black people are not genetically inferior ... Why small differences in ability can have major consequences ... Charles: We need universal, not race-based, public policy solutions ...