political scientist Lilliana Mason ... new book, Uncivil Agreement ... we actually agree about most things... “our conflicts are over who we think we are, rather than reasoned differences of opinion... Our opinions can be very fluid... if we wanted to come to a compromise we could, if there were not these pesky identities in the way... we disagree…

a research paper ... found depressing proof that the web is fuelling segregation.... matched the attitudes of those who did and did not have broadband with data on partisan hostility... Greater use of the web ensured that an admirer of Jon Stewart would think that conservatives were not just mistaken but stupid, or a viewer of Fox News would wor…