Think of it like an automatic file being built on every single person in real time. Should you do anything to warrant state suppression, your file may be flagged for further investigation which may lead to being actively tracked or suppressed (as evidenced in the past with COINTELPRO)

so no, there isn’t an agent per person. But you bet your ass there is a profile of you that connects all your electronic activity (including GPS data/metadata and tracking via MAC addresses, user agents and/or unique hardware identifiers) to intelligence agencies.

of course, much of this is intended to specifically instill fear, uncertainty, and doubt as part of a larger culture of fear.

but I figure it is better to know what’s going on so you can understand what’s happening.

He was unusually informed bc of his job & specialized training - plus he had an attorney on the phone who also said he was on his way over. I’m sure this too served as a deterrent to ICE abuse. 

Here’s another helpful handout explaining a little clearer

The Immigration Defense Project has more useful community resources including what to do if a love one has been arrested