Books that went against Nazi ideas were burned. For example, U.S. presidents often stand next to the U.S. flag. Gregory XV started a group called the Congregation of Propaganda. Propaganda is information that influences what people believe. Propaganda is information that influences what people believe. It scares people into choosing a certain side. This way the United States could save more gas during the war. This group's job was to get more people to follow Catholicism. They put up online videos to get more fighters to join their cause. Many people running for office want to show they are regular people. But the goal of advertising is to get people to buy something. But before you believe them, try to think about who created and paid for them. To see if propaganda is saying the truth, people need to do extra work. It also might scare them into taking action. This is a way to get people's trust.