Sports -- October 9, 2013 at 12:36 PM ET
Live chat at 1 p.m.: is football unsafe?
What did the NFL know about brain injuries, and when did they know it? What's the truth about the risks to players? What can be done? Is football inherently unsafe?
FRONTLINE's "League of Denial: The NFL's Concussion Crisis" reveals the hidden story of the NFL and brain injuries. Investigative reporters Steve Fainaru and Mark Fainaru-Wada, producer Mike Wiser and Garrett Webster, son of the later NFL player Mike Webster, will join a live chat to answer questions and take yours. Garrett is the administrator and player liaison for the Brain Injury Research Institute. They'll be joined by Sports Illustrated's Richard Deitsch.
The chat begins at 1 p.m. EDT, Wednesday. You can watch the chat, and participate, below: