So... DU folk are mad at the NFL ... for not knowing in the 1940s, 1950s, and 1960s ... what no one knew and could not be known until the 200Xs and 201Xs ... and may or may not be relevant to the cited case?
Re my latter clause, how many here know or have known a sexagenarian or septuagenarian whose memory has been partly or largely taken from them by some sort of dementia? Willie Wood is 79, and his case is truly sad. Mrs. SVPete and I lost, late last year, a friend to Alzheimers who was 69, whose deterioration began some 15 years earlier. Absent a definite diagnosis that may or may not be possible at nearly 50 years' remove, it is no service to anyone - least of all Willie Wood - except for ambulance-chasing lawyers to ascribe Wood's condition to having played football.