The Hill 
February 17, 2014
Federal regulators are beginning to scrutinize retailers that secretly track the movements of customers in their stores.
The Federal Trade Commission (FTC) is holding an event this week to explore the growing use of commercial surveillance, which often happens without customers’ knowledge.
While the FTC is billing the event as an exploratory workshop, privacy advocates are hoping it is the first step toward cracking down on an increasingly popular practice that has raised eyebrows on Capitol Hill.
Through a smartphone’s Wi-Fi and Bluetooth capabilities, retailers can use mobile location technology to track customers as they move around stores or shopping centers.