If we are to believe what many sociologists are telling us, the public sphere is in a near terminal state. Our ability to build solidarities with strangers and to agree on the general significance of needs and problems seems to be collapsing. These cultural potentials appear endangered by a newly aggressive attempt to universalize and extend the norms of the market. For four decades Habermas has been trying to bring the claims of a modern public sphere before us. His vast oeuvre has investigated its historical, sociological and theoretical preconditions, has explored its relevance and...