The problem is a search warrant grants additional powers to a government agent, that a private citizen doesn't have. Whereas buying from data brokers is somethi

The problem is a search warrant grants additional powers to a government agent, that a private citizen doesn't have. Whereas buying from data brokers is something anyone can do - it would be odd if a government agent had less authority than a random citizen. On the other hand, it could be argued that buying this data amounts to hiring the airline to spy on you, no different than if they had hired a private investigator to follow you. But if everything is tracked and stored indefinitely, a mere warrant isn't much of a shield [1]. Nor does this solve the problem of corporate surveillance, which I see as just as big a threat. [1] https://web.archive.org/web/20140718122350/https://www.popehat.com/2014/07/15/warrants-bulwark-of-liberty-or-paper-shield/ https://web.archive.org/web/20140718122350/https://www.popeh...