>>32461
The CIA was created in 1947, mass manipulation already existed by then (see for example all the propaganda during the world wars, and Edward Bernays' book on propaganda).
>Do you think there are plenty of Americans out there, who are completely brainwashed without realization?
What level of brainwashing are we talking about? If you mean standard political and cultural indoctrination, then yes. Just look at any university and you'll find plenty of brainwashed kids. Anyone who watches television is being brainwashed without realising it. However if you mean complete brainwashing, I think that requires trauma-based programming and is only done on a few specific individuals (the events of September 11, 2001 would be an exception).