Josef Trappel, Werner A. Meier, Klaus Schrape, Michaela Wölk
Die gesellschaftlichen Folgen der Medienkonzentration
Opladen 2002
http://www.worldcat.org/oclc/1026917737https://link.springer.com/book/10.1007%2F978-3-663-09713-6
https://link.springer.com/content/pdf/bfm%3A978-3-663-09713-6%2F1.pdf
The public entity "Landesanstalt für Medien Nordrhein-Westfalen" of the federal state of Northrhine-Westfalia confirms with the publication of this book the basic background of the reasons of the uniformal public opinion regarding the topic of immigration in the years after 2014: the concentration of media. Only this concentration of media could make the uniformity of public opinion to this topic possible.
It means in argumentum e contrario that there is no free public opinion - at least in key topics.
So far to the objectivity of investigation in the media regarding the existence of "chemtrails".
