 The Copyright Renewal Act of 1992 removed the renewal requirement, so that all copyrights would last the same term.Now, creators must explicitly remove copyright if they do not desire it.Working from the case law of "Eldred v. Ashcroft", which unsuccessfully challenged the extension of copyright, Lawrence Lessig argued that a change in copyright law as drastic as the change from opt-in to opt-out required a review in regard to freedom of speech.