An interview with Ronald Dworkin, author of "Is Democracy Possible Here? Principles for a New Political Debate."

Politics in America are polarized and trivialized, perhaps as never before. The result, Dworkin believes, is a deeply depressing political culture, as ill equipped for the perennial challenge of achieving social justice as for the emerging threats of terrorism. Yet this need not be. Dworkin, one the world's leading legal and political philosophers, identifies and defends core principles of personal and political morality that all citizens can share. He shows that recognizing such shared principles can make substantial political argument possible and help replace contempt with mutual respect. Only then can the full promise of democracy be realized in America and elsewhere.