Excellent reply Paulybrklynny.
I myself, always recommend the video documentary
Manufacturing Consent - Noam Chomsky and the Media for those who wish to know more about how the media really operate and keep debate within a certain range of opinions.
To underscore the point, here is a recent study done by FAIR:
Watchdog Group Report: Most NPR Sources are Conservative
Just goes to show, so called "liberal" reporters do not necessarily make "liberal" news. It is the editors and executives who decide what gets published and
who gets on the air.