Is killing, torturing or simply harming 99 people an acceptable action if by doing so 100 people could be saved? The Cost-Benefit Analysis (define?) is a highly controversial topic among philosophers such as Dershowitz, Bentham and Mill, since it describes a very cold way of deciding on ethical issues. In his book “Why terrorism works” (p.236), Dershowitz’s expresses serious concern about the moral limitations of the Cost-Benefit Analysis , which he suggests could lead to tyranny. In this essay, I seek to respond to Dershowitz’s concerns on the use of the Cost-Benefit Analysis through a defence of the morality by numbers approach. I suggest that this mathematical scheme, which discards complex moral factors, affords the best possible outcome
