In a column for Motherboard, Stephen Vladeck analyzes a forthcoming Supreme Court case that will decide whether law enforcement will need a warrant before tracking an individual's cellphone location, calling the case "the most important privacy case in a generation." Carpenter v. United States "raises a specific question about whether Americans have an expectation of privacy in historical 'cell-site location information,'" he writes. The 6th Circuit, on appeal, affirmed that the defendant did not have an expectation of privacy with his CSLI, and thus, law enforcement did not need a warrant. "Whether the Supreme Court endorses or rejects this logic, the answer has enormous implications for privacy rights," according to Vladeck. More specifically, the implications of the decision "and for the relationship between new technology and constitutional understandings of privacy — will be profound." 
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