One minor nitpick: it's actually a series of copyright extensions over the years: http://upload.wikimedia.org/wikipedia/commons/2/2f/Copyright_term.svg http://

One minor nitpick: it's actually a series of copyright extensions over the years: http://upload.wikimedia.org/wikipedia/commons/2/2f/Copyright_term.svg http://upload.wikimedia.org/wikipedia/commons/2/2f/Copyright... Unless something changes, nothing will fall into the public domain again. And the act of repeatedly extending copyright was upheld by the US Supreme Court in Eldred v. Ashcroft.