One decade ago, little Portugal was front-page news in America. Would this NATO ally, in the aftermath of a surprise coup against Western Europe's oldest dictatorship, succumb to the Portuguese Communist Party's drive for power? Would it be- come "the Bulgaria of the West"? Washington feared the worst. Happily, Portuguese democrats prevailed. But the people whom dictator Antonio de Oliveira Salazar had long isolated from change could not go back to old ways and old dreams. Since 1974,...