Responsibility, in the moral sense, is not a property of actors, but merely a confabulation on our part designed for one and only one purpose: to justify the suffering we inflict upon others. This holds equally well in regard to matters of retributive and distributive justice: responsibility is a mere holdover from an antiquated conception of the world.
It is not responsibility, but the estimation of conditional recidivism that should concern any legal system.
and government.