Eduardo discovers a cease and desist letter that Mark received from the Winklevoss twins that suggests he stole the idea of Facebook from them. Eduardo acknowledges the seriousness of the letter, while Mark doesn't seem to think it's much of a concern. Mark then argues over the rights to Facebook with the Winklevoss twins.
Stan explores how the owners of websites and Internet Service Providers can be held liable if they don't do enough to combat their users' infringement of copyrighted works. It also explains the purpose, criteria, and criticism of the DMCA, and how ISPs deal with copyright violation.