Find a current event that relates to the concepts of Propaganda: How and why do people follow the masses without thinking?
There was a considerable amount of propaganda about health care reform in the past couple of years. First it was "death panels" and how somehow the government was going to require you to die by a certain age or be cut off of benefits (??), then it was you won't get to choose your doctor and a bureaucrat would tell you whether you got care or not, all things that were quite obviously not in the actual bill itself, yet were widely believed anyway. One good way to tell propaganda is whether or not someone is telling you to hate or fear someone or something, and then don't quote any real verifiable sources for their information. Radio and TV pundit shows do it all the time.
People buy this junk for a couple of key reasons: 1) They are afraid, and have been told these fears are justified, and 2) They already dislike the President, and want to believe he is doing something awful because it means you can entirely dismiss any good arguments he might have and just brand him as evil.
This is not a Democrat or Republican thing alone, it is both parties. George W. Bush was vilified by the left during his Presidency, and when he tried to address glaring flaws in our immigration policy and Social Security, he was politically crucified for it when people against him, once again, spread fear.
Propaganda is really in the eye of the beholder since the word is generally seen to cover instances where the truth is being distorted. One person's distortions are another person's perceptive truths. Because of this, anything that I call propganda may seem like truth to another.
I will look at the outcry over the idea that Pres. Obama is either A) Muslim, B) foreign born, or C) both. This is something that many on the right follow without question.
To the extent that the "masses" follow this, they do so because it already fits into their preconceptions. They see Obama as foreign because of his race and where he grew up, but also because his policy choices are so opposed to their own. This shows how propaganda is most effective when it fits in to people's preexisting ideas.