Inoculating yourself against propaganda involves merely understanding standard counterintelligence techniques and past known examples. The first step to recognizing propaganda is to watch for attempts to change your emotional state. Polarization is the first step to mind control. Be particularly cautious of anything that is attempting to stir up outrage or schadenfreude in you. Be cautious of anything attacking your intelligence, morality or view of consensus. Everyone wants safety, security peace. When the news tells you a group of people want something other than that, they are lying.