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UNAVOIDABLE
FALLING MAN By Don DeLillo, 246 pages
Novelists just can't seem to keep their ink-stained mitts off the Sept. 11 attacks, can they? Those senseless acts cry out for a powerful, sense-making fictional narrative, but nobody seems to be able to give them one. The latest to miss the mark is perennial top seed DeLillo, above right, whose Falling Man is about a lawyer who escapes the Twin Towers, wanders uptown in a daze and moves in with his estranged wife. DeLillo's tone...