An author describing the methods of intensive farming, or the excesses of sport hunting, or even the harsher uses of animals in science writes with confidence that most readers will share his sense of concern and indignation. Sounding the call to action-convincing people that change is not only necessary, but actually possible-is more problematic. In protecting animals from cruelty, it is always just one step from the mainstream to the fringe. To condemn the wrong is obvious, to suggest its abolition radical.

An author describing the methods of intensive farming, or the excesses of sport hunting, or even the harsher uses of animals in science writes with confidence that most readers will share his sense of concern and indignation. Sounding the call to action-convincing people that change is not only necessary, but actually possible-is more problematic. In protecting animals from cruelty, it is always just one step from the mainstream to the fringe. To condemn the wrong is obvious, to suggest its abolition radical.

Let's just call things what they are. When a man's love of finery clouds his moral judgment, that is vanity. When he lets a demanding palate make his moral choices, that is gluttony. When he ascribes the divine will to his own whims, that is pride. And when he gets angry at being reminded of animal suffering that his own daily choices might help avoid, that is moral cowardice.

The smell of factory farms . . . many notice these places only when the odours reach their homes, affecting their own quality of life. We create these animals for our profit and pleasure, playing with their genes, violating their dignity as living creatures, forcing them to lie and live in their own urine and excrement, turning pens into penitentiaries and frustrating their every desire except what is needed to keep them breathing and breeding. And then we complain about the smell.

Sometimes tradition and habit are just that, comfortable excuses to leave things be, even when they are unjust and unworthy. Sometimes--not often, but sometimes--the cranks and radicals turn out to be right. Sometimes Everyone is wrong.

When you start with a necessary evil, and then over time the necessity passes away, what's left?

Where we find wrongs done to animals, it is no excuse to say that more important wrongs are done to human beings, and let us concentrate on those. A wrong is a wrong, and often the little ones, when they are shrugged off as nothing, spread and do the gravest harm to ourselves and others.