"Close your eyes and picture your community. Whom do you see? Your family, surely. Work colleagues? Everyone who shares your area code? Your religion? All Americans? Folks in Afghanistan? Unless we start answering yes to all of the above, we're in for big trouble.
That's the message of Peter Singer's timely and thoughtful book, ''One World: The Ethics of Globalization.'' A professor of bioethics at Princeton University and one of the most provocative philosophers of our time, Singer writes, ''How well we come through the era of globalization (perhaps whether we come through it at all) will depend on how we respond ethically to the idea that we live in one world.''"