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>> reporter: lots of people are talking about the power the nfl has, about the helmet to helmet collisions. you may have seen this commercial. watch for the helmet to helmet. what happens is during the commercial, you can see the mother. and she explains about how toyota has shared some software that simulates head injuries in a car crash with researchers at a university that are studying head injuries. this ran during a monday night football game and nfl didnt it, they asked toyota to pull it. ...