There has been justifiably a lot of talk over the last few days about U.S. v. Jones, and the privacy issues it raises. Our editor emeritus Kashmir Hill was fortunate enough to hear oral arguments at the Supreme Court in person, alongside top legal reporters such as Jeffrey Toobin and Adam Liptak.
But when it comes to electronically tracking people, Jones is just the tip of the iceberg. Law enforcement also often follow American citizens through their cell phones. The practice has become so widespread that some magistrate judges are reconsidering their willingness to authorize it….



