MFA Brings Anti-Gestation Crate Campaign to Walmart's HQ - Mercy For Animals
Op-ed: McDonalds, Walmart, Costco, and other food retailers must abide by California law and stop selling pork, eggs from animals crammed in small cages
Walmart Animal Recommendations Seen As 'Historic,' 'Game-Changing'
Superbugs found in Walmart pork | World Animal Protection
Walmart pork supplier under fire for 'keeping pigs in tiny cages and castrating newborns without pain relief' | Daily Mail Online