Surely there is no logical reason to not imprison an insane person in a facility with treatment but otherwise like a gaol? Upon 'being cured' the person should still serve time for their actions - no? Because imprisonment as a punishment is as much about retribution and - keeping the rest of society safe isn't it? I can follow the argument that murder is by definition the action of someone not mentally capable (of living in and up to the accepted standards of society) but also if one wants to live IN society then there are standards that have to be met to guarantee the safety of everyone else. Being 'cured' of something that manifested itself in the torture, sexual abuse and murder of innocents to me - tends to put you firmly into the 'not in our society' bag.