Privacy Law

The Roberts Court has made protecting “the privacies of life” a catchphrase of Fourth Amendment law in the digital era. The time is thus ripe for revisiting the doctrinal and political roots of this newly influential quote from the Court’s 1886 decision Boyd v. United States. This Article makes a novel argument that Boyd and its elevation of protecting the “privacies of life” to an animating principle of the Fourth Amendment was instead a product of Reconstruction and its dismantlement. Fourth Amendment privacy was produced by and helped secure Reconciliation—the process through which White Americans North and South, Democrat and Republican came together to limit Reconstruction, preserve White supremacy, and pave the way for the violent disenfranchisement of newly freed Black men. The Article concludes by considering the divergent doctrinal implications of resituating Boyd and Fourth Amendment privacy in the politics of Reconciliation.

For data, the whole is greater than the sum of its parts. There may be millions of people with the same birthday. But how many also have a dog, a red car, and two kids? The more data is aggregated, the more identifying it becomes. Accordingly, the law has developed safe harbors for firms that take steps to prevent aggregation of the data they sell. A firm might, for instance, anonymize data by removing identifying information. But as computer scientists have shown, clever de-anonymization techniques enable motivated actors to unmask identities even if the data is anonymized. Data brokers collect, process, and sell data. Courts have traditionally calculated data brokering harms without considering the larger data ecosystem. This Comment suggests a broader conception is needed because the harm caused by one broker’s conduct depends on how other brokers behave. De-anonymization techniques, for instance, often cross-reference datasets to make guesses about missing data. A motivated actor can also buy datasets from multiple brokers to combine them. This Comment then offers a framework for courts to consider these “network harms” in the Federal Trade Commission’s (FTC) recent lawsuits against data brokers under its Section 5 authority to prevent unfair acts and practices.

A Response to Profs. Anupam Chander & Paul Schwartz’s Privacy and/or Trade.

On February 16, 2016, a federal court ordered Apple to “assist law enforcement agents in enabling the search” of an iPhone that had been lawfully seized during the investigation into a mass shooting in San Bernardino, California.