With the recent charges that a major National Football League player had allowed cruel dog fights on his home property, the issue of cruelty to animals has been brought to national attention. Nearly everyone acknowledges the obvious -- that a person who is cruel to animals, who enjoys sees seeing an animal suffer, is likely to inflict suffering on human beings. Cruelty to animals is one of the very few predictors among children of later criminal behavior. So, aside from altruistic concern for animals, we human beings also have a selfish concern about people who enjoy making animals suffer. People...