. >>> live super bowl sunday at noon eastern, author and sports writer dave z irr in is our guest. game over, how politics has turned the sports world upside down and his most recent, jim brown, last man standing. >> i love sports, that's why i think we need to fight for sports. we need to take sports back. we need to know our history. that's our greatest ammunition in our fight. we need to know the history of the athletes, the sports writers and the fans who have stood up to the machine. if for no other reason, i think it allows us to look at the world and see that struggle can affect every aspect of life in this system even the ivory tower known as sports. >> join our live conversation with dave with your calls, e-mails, tweets and facebook questions, live sunday at noon eastern on c-span 2. >> c-span where history unfolds daily. in 1979, c-span was a public service by america's cable television companies. and today we continue to bring you unfiltered coverage of congress, the white house, the supreme court and public policy events in washington, d.c. and around the country. tz c