In this edition of Fresh Air, host Terry Gross speaks with Michael Pollan, a contributing writer for the New York Times Magazine. To learn more about the meat industry in the US he bought a calf, and then followed the process from fattening it to slaughter. He wrote about it in the Sunday, March 31st issue of The New York Times Magazine. The article "Power Steer" is the cover story. Pollan is also the author of the book, The Botany of Desire: A Plant's-Eye View of the World in which he maintained that plants and humans have developed a reciprocal, co-evolutionary relationship.