There's a very good book called Torture and Democracy, in which the author goes into some detail (with a great deal of support; the book has a stellar bibliogra

There's a very good book called Torture and Democracy, in which the author goes into some detail (with a great deal of support; the book has a stellar bibliography) as to the organizational, cultural, and broader social impacts of torture as a state policy. I think he also helps to contextualize this recent scandal with the reality that torture has been endemic in the US for over a century and a half, in policing and corrections alone.