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.

A public outcry usually masks a private obsession.

During my school visits, I really enjoy the feedback I get from them much more than anything I might tell say to them.

So for everything I do, I'm very clear about what I'm doing, and I tell people what it's about. They get a sense of what I'm thinking. I don't let people think I'm going to write something in praise in the meatpacking industry, and then they read it and it's actually attacking the meatpacking industry.

Fast food is popular because it's convenient, it's cheap, and it tastes good. But the real cost of eating fast food never appears on the menu.

I think it's possible to have food that's healthy, that's good for you to eat, that's also inexpensive. We don't have to have this cheap, unhealthy food being so aggressively promoted.

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.