For me, 9/11, it was my last year in college and I didn't know anything about Al Qaeda, I didn't know anything about bin Laden, I had no idea. I think probably after a few years when I started seeing how the country and the policy was shifting due to terrorism, I wanted to know: Why are these people terrorizing us, and who are they?

I always hear people saying, "If I can just help one person, or if I can just stop one person from doing what I did." I don't think one person is enough. I feel you can help more than one person, help as many as you can. That's something that I would like to leave as my legacy: That I helped a lot of people and made some people make better decisions after looking at the decisions I've made in my life.

To me probably the biggest disappointments, as far as a football career goes, is I feel like I didn't live up to my potential, and I didn't win a Super Bowl ring.

I think every year you're in the NFL you probably lose three or five years off your lifespan.

Ever since I was a kid I've always loved history. I think that kind of catapulted things, but I would say the two major factors were maybe 9/11 and the election of Barack Obama.

You're never going to get rid of the injuries. The injuries are going to happen as long as there's football, especially the way it's always been played. So that's something that won't go away. But I guess they're trying to do the best they can to reduce those injuries and really take guys out of harm's way as much as they can.

Player safety is definitely something that has to be at the top of the list. I think that the union and the NFL are doing all they can to make sure they're protecting the players the best they can.