Food policy expert Marion Nestle discusses the ramifications of President-elect Barack Obama's choice of Secretary of Agriculture. Tom Vilsack, the former Iowa governor, has been picked to head the US Department of Agriculture. A professor at New York University, Nestle's latest book is Pet Food Politics: The Chihuahua in the Coal Mine. To read more about food issues and policy, visit her blog.
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(Photo of Vilsack with President-elect Obama by Nicholas Kamm/AFP/Getty Images)