This is a good move in union with Pope John Paul II who said that in Western Countries the death penalty is rarely necessary to protect society, as long as no liberal judge can let these criminals out.
One question however, where were these bishops when Terri Schiavo was being systematically dehydrated and starved? Her own Bishop Lynch actually sent a priest as a witness for her husband, Michael Schiavo who wanted her dead, saying erroneously that the Church approved of the withholding of food and water from a woman who was obviously not near death. Pope Benedict has since reiterated Pope John Paul II's statement that food and water are NOT extraordinary care and may NOT be withheld unless the patient is dying and their administration would cause the patient discomfort.
HT CNS, Life Site News