If you read Nader's letter closely you will see that he did not state that fighting caused the head trauma experienced by Crosby, LaFontaine, Lindros and Primeau. He is making the point that any concussion is serious and the NHL should take action, even if fighting only causes 3% or 4% of all head trauma (NHL data). You can't have a department of player safety and tolerate an activity where players punch each other in the head. Yes Nader's letter has some mistakes, like misspelling a few names and stating that the OHL has banned fighting (later corrected on League of Fans website) but the point he makes is valid. The problem I have with fighting is that it serves no purpose other than to ruin the flow of the game. If it is an important part of the game, why does it virtually disappear in the playoffs, when winning is critical? I enjoy fast paced, hard hitting hockey, not marginal players throwing punches. Get rid of fighting, let the refs police the game through increased penalties and suspensions and hockey would improve dramatically.