I think President Barack Obama has been an extraordinarily successful president, and that this period will record that with a bunch of exclamation points. But obviously not everybody thinks that.
Cass SunsteinGroups become more extreme and entrenched in their beliefs and polarized from others when members only exchange information that reinforces their views and filter out all else or never learn of alternatives. Thus they narrow their options, and magnify each other's prejudices and misconceptions. This trend leads to blind spots in decision making and to extreme behavior, even terrorism.
Cass SunsteinA system of limitless individual choices, with respect to communications, is not necessarily in the interest of citizenship and self-government.
Cass Sunstein