"Can police use cellphone location data without a warrant? Supreme Court ruling could have wide impact" PBS NewsHour 11/29/2017

Excerpt

SUMMARY:  A Supreme Court case centering around a piece of technology that most of us have in hand's reach has the potential to transform privacy law in the digital age.  John Yang sits down with Marcia Coyle of the National Law Journal to explain the details and the potential effects of the case.