 So I think that becomes the question, because there's no skills, blocking and tackling, that you can't pick up somewhat later with helmeted, padded football. But not so much when you're 8, 9, 10 years old, but a whole lot less. But you'll pick that up later. We're speaking with Dr. Tom Mayer. He's the medical director for the NFL Players Association. We're talking about is it safe for kids to play tackle football.