In 2015, a Sports Illustrated article profiled the deaths of 11 high school football players.

Five of the deaths were due to severe blows to the head. And as recently as November 2016, a 15-year-old Texas football player died after suffering a head injury while playing football.

"There are about 1.3 million high school and 2.8 million youth football players in this country. That's more than 4 million children and teenagers playing football," Ralph Nader and Kenneth Reed wrote in a Chicago Tribune op-ed. "Compare that number with the 1,700 or so adults playing football in the NFL. Yet, the nation's focus, when it comes to concussions, is on the NFL. That needs to be flipped."

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