There exist at least three reasons why capital punishment is not only controversial, but in fact a wrong way of enforcing justice and order. - Capital punishment is wrong in terms of moral, and goes against the main human values. Under the streamlined term “capital punishment” there hides a simple but blood-freezing formulation: legal murder. Death penalty is usually applied to murderers and people who committed some other serious crimes. In the eyes of the society, killing a person is wrong because every life is valuable; at the same time, society advocates death penalty for criminals; in this case, either the conventional moral values are relative and in a bad way flexible, or capital punishment goes against morality. The latter seems to be more probable. - There is no judicial system that would be perfect, and the United States is not the exception. Juries and judges make mistakes, convicting innocent people or penalizing them with unproportionate penalties. Each of these mistakes is tragic for a convict, but in case of the death penalty there is no way such a mistake could be fixed. You cannot undo the killing, and if an innocent is executed, no law or amnesty can bring them back. - Capital punishment is actually not so economically beneficial as it is widely believed. It is true that keeping a convict in prison for years costs taxpayers a lot; however, capital punishment is not cheaper at all. Every death sentence takes weeks, months, and sometimes years of costly trials and investigations. Besides, a sentenced convict, while all these processes occur, is still incarcerated - on the account of the American taxpayers. In this case, the cost of judicial trials adds up to the cost of incarceration, turning out to be not less, but more expensive for the society.