A Blakely, Ga., processing plant owned by Peanut Corp. of America, made peanut butter and paste that was contaminated with salmonella and sold to institutions and food manufacturers. The contamination was linked to eight fatalities and forced a massive recall, involving more than 200 companies and 2,100 products.

Elizabeth Flores/Minneapolis Star Tribune/MCT/File
A food safety alert sign is displayed on the peanut butter aisle at the St. Louis Park Byerly's Grocery store in February 2009, in St. Louis Park, Minn. The massive recall involved more than 2000 products and was linked to eight fatalities.