You can't sit there and worry about everything.
Keep in mind, Mike Bloomberg's kids and grandkids are breathing that air just like the coalminers' families are breathing that air. And the coalminers are the ones that have the conflict. They want their jobs, I understand that. They need to be able to feed their families. They also have to worry about their health and the health of their families.
I think that most of the candidates [for presidency] can't run the railroad, and I still worry that whoever gets elected will have policies designed for political rather than practical reasons.
There are lots of threats to you in the world. There's the threat of a heart attack for genetic reasons. You can't sit there and worry about everything. Get a life.