The video discusses the experiment a teacher conducted in her classroom, in which she divided her 3rd-grade class into groups with blue eyes and brown eyes and told them the blue-eyed groups were “the better people in this room,” later changing the rules and saying that brown-eyed kids are better (she started this experiment the day after Martin Luther King, Jr., was shot). It’s an interesting look at stereotyping and social psychology, particularly how quickly groups will change their behavior if they are told they have a superior or inferior characteristic.
R. Agrawal, and R. Srikant. VLDB '94: Proceedings of the 20th International Conference on Very Large Data Bases, page 487--499. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1994)