for his quote leadership keeping the concussion and cte conversation in the national spotlight. he's been warning about this issue since at least 2007. as this montage, which was shown at the gala, evidences. >> more urgent football issue. concussions. >> it's the hundreds, if not thousands of subconcussive hits, those are the ones that actually cumulatively take a greater toll than the concussions. >> that may become like the roman circus. where people watch it but they don't let their kids play it. >> bob, the point from the montage is you've been speaking about this issue for a long, long time. had you a viral moment this week. provide the context. >> well it was a symposium at the university of maryland involving other sports journalists, christine brennan, michael wilbond and tony