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.

A typical workday for me is getting up at about 5:00, 5:15 in the morning, getting some coffee or tea as quickly as possible, and then getting to my desk. And ideally, I'll start writing around 5:30, 5:45, and I'll write for three, four hours, and then I'll take a break, and read over what I write. Maybe about lunchtime, I'll go exercise or get out into the day. Then I'll either read over what I wrote the day before and quit work around 3:00 or 4:00 in the afternoon and spend some time with my kids.

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.

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

I think two different people can read one of my books and come away with completely different opinions on the subject. I hope they just read from the beginning to the end and be made to think about the subject. Then they can come to their own conclusions.

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.

Basically, I'm a perpetual student. I start by finding a subject I really don't know very much, but that I'm curious about. I learn about it through books in a library, by doing interviews with people who know a lot about the subject, and by going out on my own and seeing for myself what's happening.