Article on new US Secret Service pins:
https://qz.com/1478513/new-us-secret-service-lapel-pins-will-come-with-a-secret-security-feature/
Company that made the pin uses smartshield technology…
Officer Information Portal
​"Centralized access point (portal) for officer information/demographics.
Flexible, scalable solution - you define the categories and fields to be viewed.
Requires connection to existing databases; if data structure does not exist we can help create one.
Robust software easily configured to meet your security needs."
sauce: https://www2.blackinton.com/Pages/SmartShieldCapabilities.aspx