The Meriweather hit was a classic example of what the league is trying to stop. McCarthy's too cool. Sometimes you have to scream and rant, like Harbaugh. There should have been a penalty or, better, expulsion. There are a few dbs in the league who are head-hunters, plain and simple. Unless the NFL adopts a flagrant foul expulsion rule, the concussions will continue and careers will get cut short.