The value of a free press in our society was always held to lie in competition. By a healthy competition among reporters, from media of every political point of view, the public would have access to reliable information, and a real basis on which to choose. A single monolithic, unitary voice, on the other hand, is anathema to any democratic society. It becomes the voice of every oppressive or totalitarian system of government.
-- Renata Adler, Canaries in the Mineshaft: Essays on Politics and the Media