A Boston Globe article on copyright law references Professor Lawrence Lessig and his book, "Free Culture: How Big Media Uses Technology And The Law To Lock Down Culture And Creativity":

In the 2002 Supreme Court case Eldred v. Ashcroft, Lawrence Lessig, a Stanford law professor and author of the manifesto "Free Culture: How Big Media Uses Technology and the Law to Lock Down Culture and Control Creativity," argued that the Copyright Term Extension Act was unconstitutional because it violated the requirement that copyright exist only for "limited Times." Unconvinced, the court responded that Congress has the final say on how much protection to extend.