We have entered an age of insecurity-economic insecurity, physical insecurity, political insecurity. The fact that we are largely unaware of this is small comfort: few in 1914 predicted the utter collapse of their world and the economic and political catastrophes that followed. Insecurity breeds fear. And fear-fear of change, fear of decline, fear of strangers and an unfamiliar world-is corroding the trust and interdependence on which civil societies rest.