The Technology 202: We asked more than 100 tech experts if U.S. should use location data to track coronavirus. They were split.

"“Aggregate and anonymized location data may be useful to track trends, but public health officials agree that at this point in time, using individualized location data to do contact chaining is not a good use of resources, and data experts agree that the technique is not precise enough for accurate results,” said Jennifer Granick, the American Civil Liberties Union’s surveillance and cybersecurity counsel. “There are far more important things we can do — widespread testing, social distancing, building up hospital resources — rather than hoping that shiny technology will somehow save the day.”"