This document summarizes the 1997 Supreme Court case Reno v. ACLU, which ruled two provisions of the 1996 Communications Decency Act unconstitutional. The provisions criminalized sending or displaying indecent content online to those under 18. The Court found the provisions violated the First Amendment due to overbreadth, as they effectively banned access by adults to protected speech and the Internet cannot be restricted like broadcast media. While regulations may aim to create "adult zones," the CDA's restrictions went too far.