Like marketing it works in insidious ways. We have anything ranging from pretty overt propaganda, see fox, to soft core propaganda. There is a universe of facts that even NPR ignores.

For example, how much of the conservative media even mentioned WHY people where out there in the middle of a pacific storm? Background for this is extensive, but mostly ignored, except by mostly foreign media.

You might want to google project censored, and ask why those stories, it's published every year, are ignored by the American Elite media? It takes work to find the background of most of these things by the way...work that news models, controlled by powerful transnationals don't bother doing. They are not encouraged either.