September 10, 2006 -- THE LOOMING TOWER: AL QAEDA AND THE ROAD TO 9/11 BY LAWRENCE WRIGHT KNOPF, 469 PAGES, $27.95 IT may seem impious to nominate Lawrence Wright's "The Looming Tower" as the perfect 9/11 book, in the same way you might hail a Michael Crichton novel as the perfect summer thriller. But I don't know of a book that does a better job - indeed, a thrilling job - of illuminating the main human factors that went into producing the horrendous attack of five years ago (minus one day). A staff writer for The New Yorker, Wright has...