Hidden-camera video footage secretly recorded by an undercover investigator at a Burger King cheese supplier has led to the arrest of a manager and two other workers at Bettencourt Dairies, one of the largest dairies in the country. Workers were caught on video viciously beating and shocking cows, violently twisting their tails in order to deliberately inflict pain, and dragging a downed cow by her neck using a chain attached to a tractor.