Vice:

How do we try to change whatever it was that brought someone into trouble with the law? And if that proves impossible, what is the best way that society can protect itself? I wanted to find out. I also wanted to see how much of what I knew—or thought I knew—about jail turned out to be true. So I wrote to corrections departments worldwide asking for access.

I discovered that I could go to jail in America as an “undercover voluntary detainee.”

I don’t know if the author is brave or stupid. Undoubtedly, a lot of both.