The U.S. outlaws some speech as well, though it makes a different set of choices, and generally bans less of it. Some categories of speech typically banned in t

The U.S. outlaws some speech as well, though it makes a different set of choices, and generally bans less of it. Some categories of speech typically banned in the U.S. include: "obscenity", "fighting words", "incitement to unlawful action", "defamation", any false statement in some contexts, intrusion on privacy in some contexts (two branches of this are disclosure of personal secrets, and disclosure of trade secrets), etc. Though some of these categories have narrowed over the years, e.g. obscenity used to be extremely broad (including even James Joyce novels), but is now less so. International publication often ends up arbitraging these differences. For example a good deal of American communist literature was published in Europe to escape American censorship, and vice-versa for European neo-Nazi material, which was published in the U.S. to escape European censorship.