I'm not suggesting for one moment that we stop professional football. If I said that, I better leave the country, ... I think more attention should be paid by scientists and biomechanical engineers in coming up with a better helmet.

A football helmet gives you an awful lot of protection, ... but you don't have to be a doctor or an engineer or even a football player to realize that the helmet does not block out all the measured force produced when some 300-pound player with a hand the size of a Christmas ham whacks you in the head dozens of times a game, season after season.

repeated mild traumatic injury while playing football.

Forensic scientists are not policemen. We are scientists. We deal with these matters objectively. We do not [act] on our suspicion,

We can appreciate the emotional trauma these families have suffered and we want to be able to say accurately and honestly what we have,

What if, under that hypothetical scenario, they called in a dermatologist, an obstetrician and a psychiatrist.