Maybe the time has come for the Justices of the highest court in the land to voluntarily agree to participate in the same Code of Ethics which govern the rest of the federal court system.

FORBES: Scalia And Thomas Party With Obamacare Challengers On Day Court Takes Up Case

Dr Greg Gardner, deputy chairman of the Medical Ethics Alliance also welcomed the High Court's decision.

BBC: Right to die: the reaction

But Luttig is seen as much more controversial, both because of his record of written opinions and because he ran Clarence Thomas' confirmation hearing in 1991 after he'd been confirmed as a judge on the 4th Circuit Court of Appeals and that's raised some questions among legal ethics experts.

NPR: Possible Vacancy on High Court