And I can tell you something about the effectiveness of propaganda when delivered through the vehicle of education. The Exxon Valdez spill occurred when I had just started junior high school, and my 7th grade science teacher made it a big part of his daily classroom lectures on environmental damage. He was a young(ish) teacher with that sort of "I'll wear a sport coat, but with jeans" style that made the kids figure he was an authority yet still had "cool" credentials.
Like all the other kids, I had no reason to believe a teacher would promote any agenda other than the pursuit of knowledge and truth. My intellectual immune system had not yet started producing protective cynicism. I heard all this stuff about the ozone hole, and how the can of aerosol deodorant in my gym bag was to blame. You get a daily dose of this stuff at a young age, an age where your entire life to that point had been one of going to school without ever once doubting that the teachers always had your best interest at heart, and you absorb it all. Exxon was so thoroughly demonized that when I'd be out in the car with the family I would plead that they keep driving past the Exxon station and get their gas at a different one.
That spell was broken through a combination of my dad calling bullsh*t on the hysterics of the whole environmentalist pseudoreligion, and the beginning of the Gulf War a year or so later. I distinctly recalled seeing the evening news when Green Peace activists were demonstrating on a sidewalk in Washington, with one of their No Blood For Oil street theater episodes. They were flopping around on the ground, writhing in fake blood/oil making a spectacle of themselves, and I soon became aware that the environmentalists were one and the same with the people always bad-talking America.
Anyhow that is my own little personal anecdote about how insidious this propaganda is. Parents need to keep a watchful eye on everything their kids come into contact with, because there are so many who want to corrupt the little skulls full of mush.