Stuart Thompson

Granular surveillance is still new. But some experts argue the window to define our cultural values around tracking citizens may be closing. In the United States, and across the world, any protester who brings a phone to a public demonstration is tracked and that person’s presence at the event is duly recorded in commercial datasets. At the same time, political parties are beginning to collect and purchase phone location for voter persuasion.

The Times Privacy Project obtained a dataset with more than 50 billion location pings from the phones of more than 12 million people in this country.