As the number of high school students playing football in California declines, coaches, trainers and state officials are working to retool the game to make it safer to play. In this edition of KCBS In Depth we speak with some of those carrying out this work to learn what emerging medical science has to teach us about the risks posed to young players' developing brains and how the sport is adapting in the face of those risks.  

Guests: 

• Ron Nocetti, the executive director of the California Interscholastic Federation
• Geoffrey Manley, a professor of neurosurgery at the University of California, San Francisco, and a co-director of the university's Brain and Spinal Injury Center
• Steve Henderson, a football coach at Aragon High School in San Mateo and a senior trainer with The Positive Coaching Alliance

Host: KCBS reporter Keith Menconi