Tracking technologies are a real threat to an individuals' privacy, opines Christopher Caldwell in the Financial Times. Though a recent Supreme Court ruling that police needed a warrant to track a suspected criminal's vehicle was a step in the right direction, he noted the justices cannot agree on why tracking citizens should be a problem. Justice Antonin Scalia reasoned in the majority opinion that the tracking was problematic because, by placing the GPS on suspect's car, the police "physically occupied private property," Caldwell writes. Technology has changed the ways search and seizures occur, and therefore, such technologies "must be subjected to strict constitutional safeguards," writes Caldwell, and "It is by no means certain, alas, that they will be."
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