[grey_whiskers]

“It’s an older pin, sir, but it checks out.” /Star Wars>

That part, I understand. Good security IF the distribution of currently valid pins is well-controlled.

[Porkchop]

Article about the lapel pins...

https://qz.com/1478513/new-us-secret-service-lapel-pins-will-come-with-a-secret-security-feature/