On Monday Q's sports-culture panel tackled the damage caused by concussions. Athletes can sustain a lot of physical punishment...especially in sports such as boxing, football and hockey. The latest issue of The New Yorker features a Malcolm Gladwell piece in which Gladwell reports that the brain damage stemming from concussions seems far more severe than we have realized - and can lead to dementia later in life. What do you think? Do athletes - and sports organizations - need to take head injuries more seriously? How do we decide what's acceptable risk? Should fans be encouraging changes to the game in order to protect athletes? Or does an emphasis on safety threaten the culture of tough that these sports rely on?