Your dollar cheeseburger isn't a dollar if you factor in what it's going to cost in health care.

I think it's too soon to say that, and I think, basically - most of the people that I ran across and most of the studies that I saw suggest people don't go to McDonald's to eat healthy food. They go to eat fries and cheeseburgers.

All the food we eat - every grain of rice and kernel of corn - has been genetically modified. None of it was here before mankind learned to cultivate crops. The question isnt whether our food has been modified, but how.

People wrap themselves in their beliefs. And they do it in such a way that you can't set them free. Not even the truth will set them free.

I started to write about science and medicine at the Washington Post, in the early days of the AIDS epidemic.

Benjamin Franklin refused to have one of his children vaccinated against smallpox. The four-year-old boy died, and Franklin wrote later of how mistaken he was to expose him to the needless risk.

Flu is easily transmitted, so if you are working with sick people - who are most at risk for getting seriously ill - you ought to be vaccinated. I am not really equipped to say whether it should be the law or not.