Depending on your ignorance what you eat might kill you, especially for children. The following article illustrates how a cow is slaughtered and the conditions in which they are living is beyond cruel. The probabilities of an e.coli or salmonella outbreak are higher than ever and lack of accountability of the USDA should be a crime.
http://www.grist.org/article/2009-08-12-cargill-school-lunch-antibiotic-resistant-salmonella/