From 2009: https://www.nytimes.com/2009/10/04/health/04meat.html https://www.nytimes.com/2009/10/04/health/04meat.html Slaughterhouses not testing their produc

From 2009: https://www.nytimes.com/2009/10/04/health/04meat.html https://www.nytimes.com/2009/10/04/health/04meat.html Slaughterhouses not testing their products for E coli, because it's too expensive. Slaughterhouses blacklisting customers who do their own testing. USDA has no effective regulatory powers to change that.