The world has changed since the early Christian theologians named envy as one of the seven deadly sins, but it seems that the human heart has stayed much the same. Envy: Exposing a Secret Sin by Mary Louise Bringle finds that what once was viewed as destructive to the soul is now desirous. From the Texas woman who tried to kill the mother of her daughter's rival for a position on the cheerleading squad to the market's use of envy to sell everything...