A Fearful Symmetry

What if the American president, torn by grief over his wife's death, suddenly announced that he had been in direct contact with aliens? What if an apocalyptic and opportunistic New Age movement predicted the appearance of a sign in the heavens—and the sign appeared? What if Third Reich holdouts in South America secretly searched for a power source used by the ancient seers of Atlantis—and found their quarry? What if the only way to assure human survival was to risk nuclear conflagration?