We're learning more about the risks that come with playing football. A new study of 111 brains of former NFL players revealed that 110 of them had a degenerative brain disease called chronic traumatic encephalopathy, or CTE. A year ago, the league revised its protocol on concussions — an issue that plagues players at every level of the game. But with more connections being made between football and brain injuries, is it time to have a serious conversation about re-inventing a beloved sport that many Americans don't want to change? Discussing brain injuries in the NFL is Gregg Easterbrook, contributing editor at The Atlantic, Patrick Hruby, former contributing editor at VICE Sports, Cyndy Feasel, author of "After the Cheering Stops: An NFL Wife's Story of Concussions, Loss, and the Faith that Saw Her Through" and Dr. Bennet Omalu, physician and forensic pathologist.