A Washington Post investigation showing that buyers affiliated with 86 rescue and dog-advocacy groups and shelters nationwide have spent $2.68 million buying dogs at auctions has ignited fierce debate - and late Tuesday the U.S. Department of Agriculture issued a bulletin stating that such individuals and nonprofits may need to be licensed under the federal Animal Welfare Act. "Our job is to ensure the humane treatment of the animals we regulate," Deputy Administrator Bernadette Juarez, who leads the department's animal care program, said in the bulletin, which cited "dog acquisitions from an auction for resale as pets" as a reason that individuals or groups may require federal regulation.