There's more to housing hens than square inches. Some egg farmers argue the cage-free barns are less humane than traditional hen housing.
After a routine audit of a pork supplier found they were not meeting humanely raised standards, Chipotle has pulled carnitas from several restaurants.
Animal rights groups are hailing the decision as an important step in the right direction.
Animals rights advocates were appalled after undercover video was released showing inhumane treatment at a top egg supplier.
The USDA announced new guidelines to ensure humane treatment of livestock, defining "egregious inhumane treatment."