There is some information I did not know about there. However, regarding this: > It is also not the case that only one person has been prosecuted over cartoons

There is some information I did not know about there. However, regarding this: > It is also not the case that only one person has been prosecuted over cartoons but no real child pornography; there have been at least two notable cases so far (and likely others that have not made the news): The Hadley case is the one that I was referring to where he plead guilty. In the Whorley case, he was in fact found to have "14 digital photographs depicting minors engaging in sexually explicit conduct" (http://caselaw.findlaw.com/us-4th-circuit/1431669.html http://caselaw.findlaw.com/us-4th-circuit/1431669.html) As for there being other cases that haven't made the news, I doubt it. This is something that free speech advocates are paying close attention to, after all. In any case, I agree with the rest of your point.