Maybe the FR church lady contingent can weigh in on which government agency will be tasked with that determination ...
Wasn’t there a court case at one time on porn, in which the judge said he knows it when he sees it?? And that discussion came up because of the difficulty in giving a precise definition of this subject. Is the display of a woman’s breast always pornographic? What if it is part of a discussion of health matters such as breast cancer?
If I recall correctly from court cases on obscenity decades ago, these are exactly the types of issues which came up in trying to define what is obscene.