Collection and analysis of personal data has been going on for a very long time. I'm sure politicians from both far left and right utilize such information. The documentary is clearly one sided, to the left. Most people watch and read what supports their political leanings. Then they vote accordingly. Perhaps those with weak minds or lack of convictions can be turned and vote other wise. Knowing the political leanings of facebook and Google ( the only people I know who's FB accounts have been blocked had expressed political views on the far right )I question weather or not all the "propaganda" got to the intended targets. I was hoping to learn something more about CIA/FBI and even local police collecting and using personal information. Something I see as a greater threat to our freedoms.