"Big Brother is watching you" is no longer a fictional admonition. Everywhere you go, your location is recorded by phone technology, license plate readers, Uber and Lyft transactions, and cameras.

Privacy? Forget about it. Your location history is in the hands of many tech companies. Can the police and other government agencies force tech companies to share that information about you? The U.S. Supreme Court took up that question on Monday. The court's decision could have widespread impact on your privacy.

If your location history puts you within a 1-mile radius of a bank robbery with hundreds of other people, you could become a suspect, swept up in the wide net cast to find the perpetrator.

Many people find the growing surveillance creepy, but law enforcement is using this technology -- called geofencing -- to solve crimes rapidly, including some that would go unsolved.

During Monday's oral arguments in Chatrie v. United States, the justices tackled this tradeoff between privacy and effective crimefighting, and how the U.S. Constitution, written over two centuries ago, can be interpreted to safeguard your rights in the age of Big Brother.

In 2019, a gunman robbed the Call Federal Credit Union in Midlothian, Virginia. Stumped, the police secured a "geofence warrant" instructing Google to........

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