Retirement for Harrison?

I have a feel good story for everyone about this past Sunday's game that I will be posting later, when I have time. However, I've been hearing this story this morning, and I'm a bit concerned. I know #92 likes to play aggressive, and he's worried that he's going to get suspended. Maybe there is some cause for concern about this. However, I think Tomlin should request a meeting with the commissioner to address this and provide some details as far as what is acceptable and what isn't. I don't think the rules are clear and I think it's going to be a witch-hunt every time a player gets injured....meaning that someone will be held accountable for a player's injury in Goodell's court.