The problem of head trauma of all types, and its cumulative effects on players, is increasingly at issue in the NFL. It's now been documented that sudden deceleration of the head, repeated over time, is linked to future dementia and all sorts of terrible brain health issues (article here, good links too). This isn't only just linked to concussions, but to "routine", legal contact experienced in the NFL.
It's certainly newsworthy on multiple levels. The players' union will likely be a catalyst for future game rule changes, and changes in the CBA. The human tragedies and lives ruined are inestimable. There's bound to be debate over how much risk a football player should be asked to accept in the performance of his job, given the high salaries.
Florio at PFT seems to have latched on to this issue, for whatever reason. He's posted several informative articles on the subject and seems to stay pretty current, if this topic interests anyone.
Let's be careful out there, Jerious.