Guilt. It comes naturally to me as a Jew and a Liberal.

We all focus on health care and diabetes and heart disease but there's all sorts of things like the simple fact that, you know, heavier people, transportation is more, so there's more spent on gasoline, more on jet fuel, people have had to change the size of doorways, the size of chairs on airplanes and at sports stadiums, so there's a lot of hidden costs as well to the increasing girth of Americans.

The situation around Terri Schiavo was a deeply held conflict over what to do if someone isn't going to return to consciousness or competence. Who will decide? Even there, where we had settled legal rules, we still had disagreement. We're torn about these things.

When my children were growing up, we began every family meal - which included breakfast and dinner every day - with a prayer. We are Jewish and so it was the prayer over bread, when we were having bread, or the catch-all prayer for everything when we weren't.

We don't have enough solid organs for transplantation; not enough kidneys, livers, hearts, lungs. When you get a liver and you have three people who need it, who should get it? We tried to come up with an ethically defensible answer. Because we have to choose.

My father always has been attractive because of his energy, warmth, charm, and talent for finding some connection with people from all cultures and walks of life. He rarely observed social formalities and niceties - something he has passed on to his boys.

I'm the son of a pediatrician, and I do believe that the most important resource we have is our kids. And I think the most important thing for America's future is to invest more in our children.