Just Security: Warrantless “Defensive” Searches of FISA Section 702 Data Violate the Fourth Amendment

Just Security: Warrantless “Defensive” Searches of FISA Section 702 Data Violate the Fourth Amendment by Noah Chauvin:

Earlier this year, Congress enacted the Reforming Intelligence and Securing America Act, or RISAA, capping a multi-year fight over whether to reauthorize Section 702 of the Foreign Intelligence Surveillance Act (FISA). Section 702 allows the government to collect the communications of non-U.S. persons (people who are not U.S. citizens or lawful permanent residents) without a warrant. This spying “inevitably” sweeps in Americans’ private phone calls, text messages, and emails as well, which intelligence officials can then “query” the database for—again without a warrant. The government’s frequent abuses of this authority have caused bipartisan outrage, and many lawmakers in Congress vowed in 2023 not to reauthorize Section 702 without “significant reforms.”

As Congress negotiated what reforms to enact, intelligence officials began to make a new argument against a warrant requirement for U.S. person queries: That a significant number of such searches are “defensive” queries intended to identify the victims of foreign plots. As I explain in an article that will be published in the American University Law Review, this is a political argument, not a legal one. The Fourth Amendment protects the privacy rights of all U.S. persons, regardless of whether they are victims, and warrantless “defensive” searches violate those protections.

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