Here is a video from Brave New Foundation, but their point here about the private prison business is larger than immigrants -- the entire War on Drugs business feeds this industry as well.
The Senate ethics report on John Ensign and an old article about Newt Gingrich show what awful pieces of crap they are. Some of the quotes are kind of racy, so don't click if you're really sensitive. Yes, I've thrown up in my mouth a bit writing about this.