Ryan Jensen, 33, front, and brother Eric Jensen, 37, leave the federal courthouse in Denver on Thursday, Sept. 26, 2013, after a hearing on federal charges of introducing adulterated food into

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Ryan Jensen, 33, front, and brother Eric Jensen, 37, leave the federal courthouse in Denver on Thursday, Sept. 26, 2013, after a hearing on federal charges of introducing adulterated food into interstate commerce. The brothers owned and operated Jensen Farms in southeast Colorado. They pleaded not guilty to charges stemming from a 2011 listeria epidemic that killed 33 people. (AP Photo/Ed Andrieski) less 

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Associated Press
Sat, Sep 28, 2013 4:10 AM EDT