In a 8-1 ruling, the justices overturned the conviction of a Virginia man who sold dog-fighting videos.
Chief Justice John G. Roberts Jr., speaking for the court, said the First Amendment does not allow the government to criminalize whole categories of speech and expression that are deemed undesirable.
Roberts also said the law was too broad and could allow prosecutions for selling photos of out-of-season hunting, for example.
Perhaps this will apply to eg pictures of cartoons having sex too.
