Maybe officials thought an ethical policy consisted of going on as before, but not telling politicians what they were doing.

ECONOMIST: Ethics man

Most of those interested in xenotransplantation are considering pigs, rather than baboons or chimpanzees, because pigs are easier and cheaper to rear, and because harvesting pigs for organs is thought to pose fewer ethical difficulties.

ECONOMIST: Pigged out

Impact investors, donors and policy makers can be far more forward thinking by linking resources to fund the next round of technology innovation and offering incentives to thought leaders to tackle the ethical and moral questions.

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It seems he wants to be thought of as a principled, ethical man, not a murderer.

CNN: STORY HIGHLIGHTS

So I thought I would consult with an expert in the area on the ethical issues of this particular business.

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Ms Ferguson, who is leader of the Conservative group, said she had no reason to believe Councillor Currie was aware of this aspect of the contract, but added she thought it was extremely damaging to the council's reputation and she could not accept it on ethical grounds.

BBC: Councillor resigns over 'lie detector' fears