There are two aspects to that. One, I'm not sure what the NFL's position is. A vice-president who is neither a doctor nor a scientist made that comment, and I believe a week or so later at least one or two NFL owners disputed that statement, so I don't know what the NFL's position is.
Dr. Ann McKee, who also works with the Boston University group, told me in my office that hockey and football are not the same. We don't have the repetitive head contact and impact that some of the other sports do. While we understand that this is an issue that needs to be constantly followed and focused on, there have not been conclusive determinations.