Lies are often so subtle, so deftly woven into easily acceptable truths, that we can fail to recognize them. Turning Sisela Bok's defense of truth in her book Lying on its head, Jeremy Campbell argues that deception should no longer be seen as artificial or deviant, but as a natural part of our world. Beginning with a study of evolutionary biology and the necessity (and ultimate value) of deceit in the animal kingdom, Campbell asks the difficult question...