'Concussion.' The NFL's Worst Nightmare

Traumatic brain injury is the skeleton that the NFL has tried to keep in its closet for far too long. Now that's coming to light on the brightest stage possible. Will Smith's new movie Concussion will expose people who don't care about football to the plights of chronic traumatic encephalopathy, or CTE.

Dr. Bennet Omalu, the former NFL and NCAA doctor who first identified chronic brain injury common factor in the deaths of several former NFL players, including Junior Seau following his death in 2012. The trailer presents the NFL as a dangerous syndicate working to discredit, disavow and coerce a doctor into hiding his research, while Omalu strives to present the truth.