jdr, I didn't click your link, but I am well aware of The Innocence Project and the large number of DNA exonerations, and that is part of my thought process. The question here as I see it is less one of adding more do-overs but of getting it right in the first place. Perhaps if consequences were real and immediate rather than abstract and uncertain, the jurors might approach their deliberations with more gravity and circumspection, the judge might take extra care to be impartial, the prosecutor might consider with more depth whether capital punishment is appropriate to seek under the circumstances. As I said, I would put all of their hands on the button; their moral culpability would be absolute rather than yet another impersonal systemic abstraction. As I see it, the imposition of the death sentence is a highly personal act of retribution, it is not merely an institutional punishment. It is only this absolute personal culpability that provides the possibility of just capital punishment. Treated as an institutional punishment it cannot help but be inhuman and unjust.