The source of an E. coli outbreak linked to fresh spinach was identified as distributor Natural Selection Foods/Earthbound Farm based in California. (Photo by Tim Boyle/Getty Images)
A leading food safety expert talks about what's happened, and what has not happened, in the year since a deadly E. coli outbreak linked to spinach killed three people and sickened more than 200.
Guests
Caroline Smith DeWaal: Food Safety Director at the Center for Science in the Public Interest.
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