almost all nfl games. >> and one other thing, betting. >> that's what i was going to say. >> very important. ever since the point spread was invented around 1940. the ascension has followed in that line. i'm sort of surprised that they limit sports betting in the state of nevada. i don't know how that's possible under the constitution. >> chris christie agrees with you. >> new jersey says, hey, that's not fair. and i agree. i can't understand it at all. once that happens, i assume that it will, i think that football will explode even more. >> so that's the strength of football. what about the threat to the game posed by concussions? because how many parents out there now are having their kids play soccer or something else. >> part paicipation in youth football is down roughly 10% as the issue has come to the fore.