Why do so many feel so lonely today? Are our friendships in breakdown mode, or are they just changing? Why are we burdened with the creeping sense that our communities are falling apart? Sociologists report that in recent decades the number of Americans who have no one in whom to confide may have tripled. Likewise, church attendance, participation in local clubs and groups, even the number of times we invite one another over to supper are all in decline. Meanwhile, some of us have more «friends»...