All I know is that if someone who commits an act of paedophilia, for example, and does not have the single shred of humanity left in them that would implore them to take their own lives for it, then someone should do it for them. That among others are some things for which I would make an exception the concept of not taking another's life, and truthfully it's not something I would lose any sleep over. I would demand harsher prisons however, if we're going along the altruistic route; this BS of flat screen TVs, DVD players, Internet access etc makes prison more of a holiday away from home.