Last time I checked, every form of execution is irreversible. That's the point. I'm not saying kill everyone, but like the movie said, "Some people just need killin" ie, murderers, rapists, that sort of thing. The whole court system is screwed up. I can go to prison for a longer time if I pirate a dvd than if I kill someone. If I'm rich enough, and I do the same, I'd probably just get house arrest.