This is a timely and important book by one of America's most thoughtful and respected scholars. Cass Sunstein discusses the genius of the Constitution and the indispensable role of free speech, dissent, and tolerance for new ideas in maintaining and strengthening modern society. This is the book for anyone who has ever wondered how to make sense of pluralism and diversity in our world.

- Senator Edward M. Kennedy,

Conformism is a drive sufficiently powerful to produce disasters even in countries endowed with constitutional protections for free speech. In this timely book written in characteristically lucid and entertaining prose, Cass Sunstein develops the underlying logic. His elegant argument also has an optimistic side. Where conformism is at work, courageous dissenters may prevent catastrophes by sowing doubts about the apparent conventional wisdom, or simply by implanting in cowed individuals the courage to air objections.

- Timur Kuran, University of Southern California, and author of <i>Private Truths, Public Lies: The Social Consequences of Preference Falsification</i>,

<i>Why Societies Need Dissent</i>...shows that demands for lock-step conformity are wrong and uninformed thinking. Sunstein's important new study is filled with empirical evidence of the significance of opposition, found in his compelling explanations of the need for, and benefits of, disagreement. Sunstein reveals that, in fact, the influence of dissenters is for the better, be it with courts, juries, corporate boardrooms, churches, sports teams, student organizations or faculties, not to mention 'the White House, Congress and the Supreme Court...during times of both war and peace.'

- John W. Dean, Los Angeles Times Book Review

Sunstein provides a learned, intelligent and lively discussion of an issue of the first importance in societies which assume that real discussion and debate ought to inform public decisions.

- William Neville, Toronto Globe and Mail

In this well-written and wise little reprise of the great themes of Rousseau, Mill, and Tocqueville, Sunstein plays sociologist, psychologist, and legal scholar to good effect. He writes of conformity, cascades, and group polarization as conceptual notions that illumine the fear, apathy, and indifference that beggar public discourse, leaving it for the advertisers, spinners, and multiple would-be Pericles of the modern age.

- E. Lewis, Choice

As Cass Sunstein argues in <i>Why Societies Need Dissent</i>, we all pay a steep price when dissent is muzzled...Sunstein is implicitly raising a red flag about the deepening partisanship of American culture. A people cordoning themselves off from one another--listening to radio programs and reading books that parrot rather than test their assumptions--spells trouble. So does the growing polarization of our two major parties, which are increasingly dominated by their fringes. Sunstein combines these insights with the results of research in clinical psychology to show the costs and perils of stifled dissent.

- Mitchell Goodman, Raleigh News Observer