The U.S. government is using app-generated marketing data based on the movements of millions of cellphones around the country for some forms of law enforcement. We explain how such data is being gathered and sold. Photo: Justin Lane/Shutterstock
The U.S. government is using app-generated marketing data based on the movements of millions of cellphones around the country for some forms of law enforcement. We explain how such data is being gathered and sold. Photo: Justin Lane/Shutterstock