Do you ever get slightly confused by the term "Deep State," or wonder if another person is sensing the same concept as you?
Here's an interesting analytical essay by Mike Lofgren, author of the book "The Deep State."
Yes, there is another government concealed behind the one that is visible at either end of Pennsylvania Avenue, a hybrid entity of public and private institutions ruling the country according to consistent patterns in season and out, connected to, but only intermittently controlled by, the visible state whose leaders we choose. My analysis of this phenomenon is not an exposé of a secret, conspiratorial cabal; the state within a state is hiding mostly in plain sight, and its operators mainly act in the light of day. Nor can this other government be accurately termed an “establishment.” All complex societies have an establishment, a social network committed to its own enrichment and perpetuation. In terms of its scope, financial resources and sheer global reach, the American hybrid state, the Deep State, is in a class by itself. That said, it is neither omniscient nor invincible. The institution is not so much sinister (although it has highly sinister aspects) as it is relentlessly well entrenched. Far from being invincible, its failures, such as those in Iraq, Afghanistan and Libya, are routine enough that it is only the Deep State’s protectiveness towards its higher-ranking personnel that allows them to escape the consequences of their frequent ineptitude. 
How did I come to write an analysis of the Deep State, and why am I equipped to write it? As a congressional staff member for 28 years specializing in national security and possessing a top secret security clearance, I was at least on the fringes of the world I am describing, if neither totally in it by virtue of full membership nor of it by psychological disposition. But, like virtually every employed person, I became, to some extent, assimilated into the culture of the institution I worked for, and only by slow degrees, starting before the invasion of Iraq, did I begin fundamentally to question the reasons of state that motivate the people who are, to quote George W. Bush, “the deciders.”
Cultural assimilation is partly a matter of what psychologist Irving L. Janis called “groupthink,” the chameleon-like ability of people to adopt the views of their superiors and peers. This syndrome is endemic to Washington: The town is characterized by sudden fads, be it negotiating biennial budgeting, making grand bargains or invading countries. Then, after a while, all the town’s cool kids drop those ideas as if they were radioactive. As in the military, everybody has to get on board with the mission, and questioning it is not a career-enhancing move. The universe of people who will critically examine the goings-on at the institutions they work for is always going to be a small one. As Upton Sinclair said, “It is difficult to get a man to understand something when his salary depends upon his not understanding it.”
-- who knew there was a website called Wikispooks.com? Here's a link to their page on Deep State, which uncovers the interesting provenance of the phrase ...