"One of the most powerful tools animal rights activists have is the video footage shot inside places like poorly run dog kennels, animal testing facilities and factory farms, used as grim evidence of the brutality that can take place. But how do animal rights crusaders actually get those videos? Through people like "Pete," a 20-something undercover animal rights investigator who, armed with a hidden camera, surreptitiously got a job in 2006 at an Ohio hog farm."