What Things Regulate Speech: CDA 2.0 vs. Filtering Lawrence Lessig* In 1995, California passed a statute making it a crime to sell porn in vending machines. More precisely, the statute made it a crime to sell “harmful matter” (meaning harmful to minors) in any vending machine, unless that vending machine is equipped with an adult identification number system.1 What “harmful matter” is is anyone’s guess.2 What an adult identification number system in a vending machine would be, no one quite knows.3 The aim of the statute was obvious. It was to keep kids from porn.4 An unattended vending machine can’t tell whether its vendee is 8 or 80. So an unattended vending machine can’t dis- criminate in its distribution of porn. Porn shouldn’t be distributed by nondiscriminating technologies — or so the California legisla- ture thought. And vending machines are just such a technology. *Jack N. and Lillian R. Berkman Professor for Entrepreneurial Legal Stud- ies. Professor of Law, Harvard Law School. Thanks to Teresa Wu, Tim Wu and Melanie Glickson for exceptional research support. Thanks also to Phil Agre, Mike Godwin, Deepak Gupta, Mark Lemley, Jon Weinberg for strong, but helpful, criticisms. Further comments should be sent to les-
[email protected]. 1 California Penal Code § 313.1(c)(2), and (h). 2As I describe more below, the standard is drawn from Ginsberg v. New York, 390 U.S. 629 (1968), but as it is applied by juries, its application has produced great variance. For a helpful introduction, see Comment, The Jury’s Role in Criminal Obscenity Cases, 28 U.