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"From a September 21, 2006 NYT op ed piece entitled \"Leafy Green Sewage\" we learned the most important question to ask about the spinach E. Coli contamination issue is:  \"Where does this particularly virulent [E.Coli O157] strain come from? It's"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/all-on-the-table-cows-corn-gasoline-spinach-e-coli-and-grass.html>