Understanding how this works is critical to the survival of the species, literally, so here's a recent, Amy-Goodman-narrated cartooned explanation followed by a long clip from the film, Manufacturing Consent: Noam Chomsky and the Media (1992).
Underneath that, I embedded the entire film; for those who still read, here's the book itself, 2002 edition.
[Added 20 June:] Oh, and looky here: a long interview with Chomsky on this very topic in FAIR.
Underneath that, I embedded the entire film; for those who still read, here's the book itself, 2002 edition.
[Added 20 June:] Oh, and looky here: a long interview with Chomsky on this very topic in FAIR.