This piece is part of a biweekly series written by David A. Foster (Center bias), based on his new book, Moderates of the World, Unite!  It has become difficult to imagine an America that is not dominated by today’s roaring spectacle. Where, instead, public discourse is sober, problem-focused, and restrained. Where the tide is turned against increasing national polarization. I’ve come to the conclusion that this world is more within reach than anyone realizes. Yes, even with our...