Lethal injections

The Boston Globe editorializes today about new studies on lethal-injection procedures.  Here's a bit:

The debate over the death penalty in America should not hinge on whether the final agonies caused by any particular execution method are unconstitutionally painful. There are many other reasons why the death penalty should be abolished: It does not deter crime; it is applied unevenly across jurisdictions and demographic groups; it is irrevocable, and the dozen-odd death row inmates exonerated by DNA evidence underscore the danger of executing the innocent.