Many successful animal welfare investigations have revealed severe abuses of animals and raised additional concerns about industrial farms, such as the potential contamination of eggs and meat. Such revelations are damaging to the animal agriculture industry and have led to product recalls, decisions by retailers to drop suppliers, legal prosecutions of employees and hard questions posed to the animal agribusiness industry.
It is worth noting that the use of exposés to reveal abuse has a long and storied history in America dating back to journalist Upton Sinclair's 1906 book The Jungle, which revealed atrocious conditions inside America's meatpacking plants and led directly to the passage of the federal Meat Inspection Act, the Pure Food and Drug Act, and the eventual formation of the federal Food and Drug Administration (FDA).
Learn about a few investigations that occurred more recently:
- North Carolina, November 2012  – Butterball Turkey
- Idaho, October 2012  – Bettencourt Dairy, Kraft foods supplier
- Wyoming, May 2012  – Wyoming Premium Farms facility, Tyson pork supplier
- Iowa, November 2011  – Iowa egg farm, McDonalds supplier
- Iowa, June 2011  – Iowa Select Farms, the state's largest pig farm