Much of the business of Presidents of the United States these days involves special, symbolic support and caring for causes, the injured, and the grieving. On September 11, 2006, the fifth anniversary of the 9/11 tragedy, President Bush traveled from “Ground Zero” in New York City, to an empty field near Shanksville, Pa., and onward to the pentagon. At each site of loss and suffering, the president served largely a symbolic yet very meaningful role. Three days after the terror and destruction of 9/11, on September 14, 2001, the President of the United States traveled to New York City to...