The cows that made the milk that went into your tea or your cereal this morning might well be housed all-year round, never grazing. The image of cows in fields peacefully munching green grass in an idyllic rural setting is not always the case. Is year-round housing a problem, or a legitimate practice for the dairy industry? What does animal welfare mean? Orla Shortall (James Hutton Institute) argues that science alone doesnt provide the answer. It is ultimately a question of values " specifically, why and how we value agriculture.