Dear CSM, I'm a reporter for public radio. Is it "Fair Use" to use a short clip from a TV show or film in order to make a point in a given story, even if I'm not commenting directly on the clip? If so, what is the maximum amount of material I am allowed to use of a given TV show or film. My understand is that if 10% or less of the story is devoted to that material, it's "Fair Use." Is that true?