This is good news. The infamous DeCSS code is protected under free speech.
In other words, you can now post a line of Perl on your website or wear it on a t-shirt without being arrested.
"The movie industry’s "statutory right to protect its economically valuable trade secret is not an interest that is ‘more fundamental’ than the First Amendment right to freedom of speech," the judges wrote. Nor is it "on equal footing with the national security interests and other vital governmental interests that have previously been found insufficient to justify a prior restraint.""