STORY: Have you ever been made to feel unsure something that you thought was obvious, but are led to doubt? I once saw a film of a classroom in which the teacher asks the children to put their had up if they think Mexico is north or south of the United States. Everyone except one kid put their hands up for north. After looking around confused, the one child puts his hand up as well. The experiment was supposed to show that peer pressure is so powerful that it will get us to give up even the most obviously true beliefs. All the children except one were told to put…