Book excerpt: In a society begging to be duped, Martin Gardner, the most devastating debunker of scientific fraud and chicanery of our time, ranges here from science and mathematics to literature, philosophy, religion, and mysticism. With keen skepticism, he skewers the fallacies of pseudoscience, from Dr. Bruno Bettelheim's erroneous theory of autism to the farce of Primal Scream therapy, and he examines the bizarre tangents produced by Freudians and deconstructionists in their critiques of "Little Red Riding Hood." Book jacket.