More than 5,000 dogs were crowded in small, barren cages lined with feces and mold. A three-week-old puppy was stuck in a waste pan under his cage, dried feces matting his fur. Fights between kennel mates had left some dogs dead, including one by "evisceration."These violations and dozens more were documented in recent United States Department of Agriculture public inspection reports. Yet for months, the USDA, which is responsible for enforcing the Animal Welfare Act, neither confiscated any dogs nor suspended or revoked the license of the animal-breeding facility in Cumberland, Virginia. The facility is owned by Envigo, a privately held company with 20 locations across North America and Europe that provides animals for pharmaceutical and biomedical research.In early May, National Geographic approached the USDA for comment about the facility’s history of violations and ongoing welfare problems. On May 18, authorities from the USDA and the Department of Justice confiscated 145 dogs in need of immediate medical care from Envigo’s facility in Cumberland, Virginia, according to a complaint filed the next day by the DOJ in federal court against Envigo. The Humane Society of the United States assisted in the seizures.What is the topic being discussed in the first paragraph …