To listen to talk radio, to watch TV pundits, to read a newspaper's online message board, is to realize that we are a people estranged from critical thinking, divorced from logic, alienated from even objective truth. We admit no ideas that do not confirm us, hear no voices that do not echo us, sift out all information that does not validate what we wish to believe.

I submit that any people thus handicapped sow the seeds of their own decline; they respond to the world as they wish it were rather to the world as it is.

Leonard Pitts, here.