Americans get their news from sit coms and 'dramas'. Not the news. The news is kind of peripheral...an obligatory thing to have rattling away in the background...so some of the propaganda is spread that way, but mostly the 'news' programs mislead by emphasizing the wrong stories or wrong aspects of the stories. Sure there's been no investigation of Sept 11, but a woman lost a son in the WTC, news at eleven.
Some people consider the Hollywood tabloid shows to be 'the news', and I know quite a few folks who display no knowledge of a news story unless Jay Leno mentioned it the night before.
The MASS brainwashing is done by the tube, and then there are the lesser forms like radio, print, disinformation on the internet, so on. Americans are slaves to television. The Justice Department knows the score and spends 40 mil a year making sure the characters on 'Friends' crack jokes about the militia and 'conspiracy theories'.