Korsh John 
The Fourth Wing of American Government [EPUB ebook] 
How Bureaucracy, Intelligence Agencies, LobbyistS, Corporations, and Medias Shape American

One of the staples of the American identity is that we have a government 'of the people, by the people, for the people.’ So we know the story: three branches of government—the executive, legislative and judicial—each serving its function to uphold the values of America.
That’s the way it’s supposed to be. But over the years, something different has crept into the system. There’s a fourth wing of American government that isn’t in the Constitution. It doesn’t answer to voters, and it doesn’t follow the same checks and balances our founders designed.