Learn about one scientist’s hypothesis that “just playing the game” places young football players at risk of chronic traumatic encephalopathy, or CTE, in this video from FRONTLINE: League of Denial. This video is featured in the interactive lesson Is Football Safe for Kids. Use the lesson to learn more about how children's brains are impacted differently and to write down your responses to evidence that football may be unsafe for young children. For background on CTE, watch Introduction to CTE and review How CTE Affects the Brain. This resource is part of the FRONTLINE Collection.