The Death Penalty, Abortion, and Costly Mistakes

As a death penalty opponent, when I make arguments like this to supporters I’m trying to do two things: first I’m hoping that they’ll agree that that killing an innocent person is so terrible that even a small risk of it gives us reason to abolish capital punishment. I’m hoping to convince them that even if it was good to kill the worst criminals, it’s not worth killing the innocent to achieve it. But I’m also trying to do something a bit less straightforward. By inviting the person I’m talking to to think about the irreversibility, the terrible finality of death in the case of an innocent person, I’m hoping to make them less comfortable about imposing the death penalty even on the guilty.