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.

Americans tend to endorse the use of physician-assisted suicide and euthanasia when the question is abstract and hypothetical.

Childhood vaccines are one of the great triumphs of modern medicine. Indeed, parents whose children are vaccinated no longer have to worry about their child's death or disability from whooping cough, polio, diphtheria, hepatitis, or a host of other infections.

The president recognizes that funding global health is good for national security, domestic health and global diplomacy. Consequently, President Obama has steadily increased funding for the President's Emergency Plan for AIDS Relief, or PEPFAR, which was created by President Bush and has strong bipartisan support.

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.

By establishing a social policy that keeps physician-assisted suicide and euthanasia illegal but recognizes exceptions, we would adopt the correct moral view: the onus of proving that everything had been tried and that the motivation and rationale were convincing would rest on those who wanted to end a life.

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.