crossed with print and rotary presses, yields the modern newspaper. And the photograph is not a machine, but a chemical and light process that, crossed with the machine, yields the movie. Yet there is a vigor and violence in these hybrid forms that is self-liquidating, as it were. For in radio and TV—purely electric forms from which the mechanical principle has been excluded—there is an altogether new relation of the medium to its users. This is a relation of high participation and involvement that, for good or ill, no mechanism had ever evoked. Education is ideally civil defense against media fall-out. Yet Western man has had, so far, no education or equipment for meeting any of the new media on their own terms. Literate man is not only numb and vague in the presence of film or photo, but he intensifies his ineptness by a defensive arrogance