> At the same time, because of the First Amendment, child pornography offenses are not "strict liability" crimes like statutory rape: in order to convict a defendant, the government must prove that the defendant knew the material involved the actual abuse of a child
That varies by jurisdiction. Some US states require criminal negligence or offer affirmative defenses with regard to the defendant's belief as to the victim's age.
> At the same time, because of the First Amendment, child pornography offenses are not "strict liability" crimes like statutory rape: in order to convict a defendant, the government must prove that the defendant knew the material involved the actual abuse of a child
https://www.zmolaw.com/child-pornography-faqs#
I've found similar claims on the websites of a few law offices. For some reason, the official DoJ materials are pretty cagey on the topic.