This thesis is divided into two main parts and is based on Persson and Savulescu's book "Unfit for the Future: The Need for Moral Enhancement". The first part of this thesis presents the basic and fundamental facts presented by Persson and Savulescu including the idea that it is easier to harm than to benefit. Subsequently, this thesis looks more closely into the concept of causally based responsibility. Another important assumption that the authors make is that the bias toward the near future and indifference to great numbers of people are one of the main flaws of human nature and together with liberal democracies they hamper the resolution of problems that we are facing today. In this they are primarily refering to the increasing possibilities of misuse/abuse of science, the deficiencies of liberal democracies and its influence on environmental problems, the risk of terrorist attacks and society problems of our contemporary society. The solution they propose is to morally enhance people using drugs (oxytocin and SSRI) or by genetically engineering humans and they give their definition of morality that is based on altruism and a sense of justice. These two dispositions, according to them, always lead to morally correct behavior. The second part of this thesis concernes itself with criticism, particulary on the view that empathy and altruism always lead to morally correct behavior. The issue of emotions and cognition in moral decisions and behaviors are also considered as well as the difficulties of the public financing of the project of moral bio-enhancement. Furthermore, this thesis attempts to challenge the theory that it is easier to harm than benefit, and it is concerned with issues that arise around the implementation of moral bio-enhancement: will the enhancement be voluntary or imposed upon people, the questionability of the safety and reliability of such a project.