Another related case - this time opinion of the US Supreme Court:http://chronicle.com/article/A-GoodBad-Week-for-Free/130422/QuoteIn Golan v. Holder, a group of conductors, educators, film distributors, and others challenged the constitutionality of Congress's decision in 1994 to remove millions of books, films, songs, and other creative works, mostly foreign, from the public domain and restore