Drain: The End of Factory Farming
Over the last century, we have seen a blossoming expansion of human rights across race, age, class, sexuality and gender. Once upon a time, three-fourths of all people were enslaved, but human slavery is now illegal in every country in the world. In his tour de force “The Better Angels of our Nature: Why Violence Has Declined,” Steven Pinker documents in painstaking detail how the murder rate has fallen since the Middle Ages by almost 95 percent, how child abuse has halved since the 1990s and how the rate at which animals are harmed during the production of movies has fallen by 90 percent since the animal rights revolution in the 1970s.