That it is. It is an arbitrary and hugely expensive barbarism whose victims in the United States are often black, poor or mentally disturbed — and sometimes innocent. Over the past 45 years, when 1,479 people were executed in this country, 162 people sentenced to death have been exonerated. All the arguments for executing criminals have been debunked: It is useless as a deterrent and it does not save lives by getting rid of murderers. Many countries, including nearly all Western democracies with the shameful exception of the United States, have rejected it.