I really like visiting schools, but what I tell students isn't anywhere near as interesting to me as what they tell me.

As a matter of fact, most cases of food poisoning are never linked back to their source.

I've written about illegal immigrants in the United States; I spent a year following migrant farm workers as they were harvesting. I've written about our criminal justice system, and how it treats the victims of crime. I've been working for years now on a book about prisons in America, and I've been going into prisons and traveling around the country and seeing what's going on.

When you go into a fast food restaurant, you may just think about how good your meal tastes while you're eating it. But you're not thinking about all the consequences that come from that one purchase - the consequences for your body, the consequences for supporting this company and how it's treating it workers, all the way back to the farm where the potatoes were grown, or the ranch where the cattle were raised.

I'd been eating fast food all my life without thinking about it. And the more I learned about the subject, the more intrigued I became.

Most fast food is fried. Fried food tastes great, and people dont seem to care about the fat aspect.

The fear of murder has grown so enormous in the United States that it leaves a taint, like the mark of Cain, on everyone murder touches.