"The date, September 11, 2001, now has a certain permanence, graven on ourcollective memory, like a very few others December 7, 1941, and November 22, 1963, dates which seem to separate yesterday from today, and then from now. They become the rarest of moments; ordinary people will forever be able to tell you where they were and what they were doing when they first heard the news, as if the terrible deed had happened to them, which in some ways it...