If you can possibly find the time, I highly recommend watching this video.
https://www.ted.com/talks/zeynep_tufekci_we_re_building_a_dystopia_just_to_make_people_click_on_ads
We are all continually being manipulated and most don't realize it.
This is the culmination of psychological research, massive data mining of everything we do and say and AI algorithms that learn how to target people with data and then use psychology to get a desired behavior.
This country has been completely categorized at a very granular level by big data so that people can be controlled almost individually.
We like to think we are intelligent and rational, but we are fooling ourselves. We all have hot topics that generate an extreme emotional response. If we have the right information fed to us that pushes our buttons, we change our behavior. No one is immune.
What's scary is that we all tend to believe that we are smarter than that or somehow immune and it is the other guy who is crazy for believing what they believe.
I made a comment a while ago that we are fooling ourselves if we think we are in control. It's all an illusion. All we do is slap a donkey or an elephant bumper sticker on the bus but we are never in the driver's seat.