The guys who wrote this book made over $70,000,000 by developing black sites and techniques for enhanced interrogation (AKA torture). They recently settled a lawsuit that was started by three of their victims. Library patron AJBarney has pointed out that the Guardian has released a great deal of information about the lawsuits and information released in pre-discovery. You have to decide between Torture works or torture does not work. Similar to climate change exists or climate change does not exist, the Russians interfered in the 2016 election or the Russians are our buddies and did not interfere with the election.