Edgar Dale (1900-) US educationist who developed the famous Cone of Experience theory. He made several contributions to audio & visual instruction, including a methodology for analyzing the content of motion pitcures.
One of the curious things about censorship is that no one seems to want it for himself. We want censorship to protect someone else; the young, the unstable, the suggestible, the stupid. I have never heard of anyone who wanted a film banned because otherwise he might see it and be harmed.