Joseph Bernstein and Jeremy Singer-Vine report:
Devices identical to those secretly planted in New York City phone booths have been installed in public spaces in Los Angeles and Chicago, BuzzFeed News has learned.
The Bluetooth devices known as “beacons” were installed in bus benches in Los Angeles and train stations in Chicago. Additional information obtained suggests that the devices were also installed in San Francisco, though BuzzFeed News was unable to independently confirm that allegation.
Read more on BuzzFeed.
Thanks to Joe Cadillic for this link.