There's not much point in complaining about injustices against prisoners at Gitmo; they are, after all, by definition "enemy combatants."
Instead, read this transcript describing how visitors to the United States are treated at JFK airport. Regular visitors. Tourists. Tourists with darker skin color or history of travel to suspicious places.
This is from AlterNet, which I guess could be considered "fringe," but it's information that you won't find on mainstream news sites. I won't transcribe an excerpt here; it needs to be read in toto (takes 3 minutes).
It's not pleasant reading if you want to be proud of the United States.
A long (500+ comment) Reddit discussion is here.