The man who proclaimed that “when a great democracy is destroyed, it will not be from enemies from without, but rather because of enemies from within” was a sanctimonious, thin-lipped, incorrigible fearmonger—but, in a way, he had a point. From time to time, even Senator Joseph McCarthy could stumble upon something significant, albeit unwittingly. American democracy may be fed on treaties, trades, a general muddling through and the occasional glorious battle, but it is ultimately determined and damaged in the hearts and minds of ordinary people by the stories they tell about it, to themselves and to others. The plot comes to pass with every endless workday, every show trial, each tiny hamburger helped down with a gulp of Diet Coke. Every time Wall Street bros publicly bump fists, America…