The Communications Decency Act, which regulates certain content on the Internet, is so overbroad that it is an unconstitutional restraint on the First Amendment. Decided June 26, 1997 (argued March 19, 1997). Opinion of the Court: John Paul Stevens → go there Applied: the First Amendment → go there Topic: Freedom of speech and of the press. Reno v. American Civil Liberties Union, 521 U.S. 844 (1997), is a landmark decision of the Supreme Court of the United States, unanimously ruling that indecency provisions of the 1996 Communications Decency Act violated the First Amendment's guarantee of freedom of speech. This was the first major Supreme Court ruling on the regulation of materials distributed via the Internet. Wiki link