I only have a basic account here. I cannot send a private email.
Google "supreme court ruling on transportation of obscene material" August 11, 2023
And regarding what is obscene:
The U.S. Supreme Court established the test that judges and juries use to determine whether matter is obscene in three major cases: Miller v. California, 413 U.S. 15, 24-25 (1973); Smith v. United States, 431 U.S. 291, 300-02, 309 (1977); and Pope v. Illinois, 481 U.S. 497, 500-01 (1987). The three-pronged Miller test is as follows:
Whether the average person, applying contemporary adult community standards, finds that the matter, taken as a whole, appeals to prurient interests (i.e., an erotic, lascivious, abnormal, unhealthy, degrading, shameful, or morbid interest in nudity, sex, or excretion);
Whether the average person, applying contemporary adult community standards, finds that the matter depicts or describes sexual conduct in a patently offensive way (i.e., ultimate sexual acts, normal or perverted, actual or simulated, masturbation, excretory functions, lewd exhibition of the genitals, or sado-masochistic sexual abuse); and
Whether a reasonable person finds that the matter, taken as a whole, lacks serious literary, artistic, political, or scientific value.
Any material that satisfies this three-pronged test may be found obscene.