The average American is likely to be completely clueless as to the cultural influence of the CIA and other government agencies on their daily lives. And this is just commentary on the things the agency has publicly admitted to.
Americans by and large absorb what is within the bounds of acceptable political thought from mass media. What you don't see are the hands behind the scenes sculpting our culture.
[0] http://www.salon.com/2015/07/31/youre_watching_pentagon_prop...