Earlier this week it was announced by the Centers for Disease Control that an outbreak of E. Coli was linked to McDonald's Quarter Pounders - most of the impacted states however are in the west and midwestern parts of the united states. This comes after Boars Head has been impacted by a deli meat listeria outbreak. With Chris Edwards to discuss all of this is Dr. Darin Detwiler, food safety advisor, author and a professor at Northeastern University.