Every now and then a celebrity appears upon the American show business scene analysis knows not of. It is more often than not a woman whose notoriety, publicity or appearance seems inexplicably to grasp public imagination and go click. What results is a faddish fascination with a person as product, pop phenomenon, fast food sensation, human hula hoop. Vanna White is such a person.Discovered by Merv Griffin, who chose her from over two hundred other hopefuls for her position as hostess of television's syndicated quiz show, "Wheel of Fortune", White got the job (says Griffin) because of her
