A showdown between an ad tech firm and the FTC will test the limits of U.S. privacy law

The showdown could shape the future of a data market that the FTC says threatens Americans with “stigma, discrimination, physical violence, emotional distress, and other harms.” Who gets to know where you are? The question is at the heart of a new lawsuit by the US Federal Trade Commission against a little-known Idaho-based ad tech company, Kochava, which regulators accuse of unfairly selling the timestamped location information of millions of Americans. But before government lawyers...