Yup -- definitely.
I'm not sure how many people are aware, but a couple weeks ago it was revealed through a leak that the FBI has a list of people that they deem "potential extremist/terrorists" who should be monitored.
This list includes putting many of them on "no fly" lists, meaning without any due process, and without and sort of tangible evidence -- other than a demonstrably corrupt as hell Federal police agency's word -- these people are being targeted and having their lives ruined simply for having the wrong opinions.

That list?
It had the names and information of over 1.9 MILLION people.
The more you know, right?