Here's what the Patriot Act has been used for:

[Os Cangaceiros]

http://3.bp.blogspot.com/-zReluevD_5U/TmUEiy046_I/AAAAAAAAEMY/MAKLTfj6QUI/s1600/prmarginalia110905_250.jpg

(Delayed-notice search warrants issued under the expanded powers of the Patriot Act, 2006–2009)

http://nymag.com/news/9-11/10th-anniversary/patriot-act/

[Jose Gracchus]

The expanded powers of the bourgeois State, justified always on the grounds of defeating nefarious, faceless, ghoulish enemies with unspeakable intentions, is almost invariably used in fact to wage war against its own domestic population (especially the working class).

Here's one more piece of proof.