“While opponents of capital punishment allege that it is unfairly used against African–Americans, each additional execution deters the murder of 1.5 African–Americans. Further moratoria, commuted sentences, and death row removals appear to increase the incidence of murder… Americans support capital punishment for two good reasons. First, there is little evidence to suggest that minorities are treated unfairly. Second, capital punishment produces a strong deterrent effect that saves lives.”