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Undercover videos produced by animal rights groups are fueling a debate over the need for new laws to regulate the treatment of American dairy cows.
The graphic videos include one filmed inside a huge New York dairy operation where cows never go outdoors, and are tail docked; a procedure where half or more of their tail is amputated, for the purpose of improving cleanliness. This is performed without anesthesia. They are seen being abused by one employee who hits a cow over the head with a wrench when it refuses to move.