Source: Pittsburgh Post-Gazette
September 11, 2005
History is an asymmetrical mess. The past foretells the future; the future arrives and, often enough, exposes the past as an amiable fraud.
The history of Sept. 11, 2001, was explained, for instance, on Dec. 29, 1913 when William A. Dunning stood before the annual meeting of the American Historical Association and caught hold of a luminous ray of truth.
"If the lesson of the past is sought as a guide to any policy," Dunning said, "the lesson that is learn