From Jan Irving’s mostly excellent Gnostic Media podcast.
What would happen if everyone in society received an immunization against all of today’s media and political propaganda? Is there a simple, logical process to arm ourselves against such attempts at mind manipulation and control? What if you had the ability to quickly and easily break down words and sentences to identify lies and untruths and propaganda? What do grammar and rhetoric have to do with logic and critical thinking, or, for that matter, marketing, PR and propaganda spin, and more importantly, exactly how can they help you? If someone presents evidence of a claim, do you have a mental duty to study it before you attack it? How can we make our minds sharper? Is it possible to level the playing field against corporate and government propaganda by creating a critical thinking meme?
[Note actual interview starts at 8 minute mark.]
Michale Lebossiere also has a great reference page with a list and description of common logical fallacies here.