And asking people to stay on a placebo for years on end poses significant ethical problems.
But large-scale efforts to computerise health records tend to run into bureaucratic, technical and ethical problems.
And the apologies of today do not mean that the ethical problems of the past have evaporated.
Weinstein refused to defend Galant against the Green Movement's petition because he said he had "ethical problems, " with representing the case.
The mayhem surrounding Newt Gingrich's ethical problems has that feel to it.
Mr Kneese sympathised: ethical problems could be more difficult than economic ones.
Allowing anyone to edit a service can create other ethical problems.
Speaking afterward, she said it's time for voters to close the chapter on Jackson's ethical problems and send someone to Washington who can hit the ground running.
While Brown may not have known of the ethical problems of these four advisers, there are too many instances of people trusting the wrong people to serve in these important roles.
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All the rows, all the ethical problems and all the money spent in pursuing the human code for life will have been well worth it if it fulfils even some of its medical promise.
In 1999, he left the business world to become the president and chief executive of the 2002 Olympic Winter Games in Salt Lake City, after fiscal and ethical problems emerged under the previous management.
Mr Huckabee has ethical problems (he accepted a ton of gifts when he was governor of Arkansas), eccentric policies (scrap income taxes, make America self-sufficient in food) and a feeble grasp of world affairs.
At a Campbell meet-and-greet across town, Donna Arnold tells Campbell that, though DeLay has done good things, he's now got to deal with his indictment and ethical problems without taking the community down with him.
Richardson: Climate change poses ethical problems because it threatens the enjoyment of basic human rights at a vast scale, because formulating and agreeing upon adequate solutions stretches the envelope of what international policymaking bodies can legitimately undertake, and because fairly allocating the burdens of implementing any solution poses thorny problems of justice.
Beyond the potential ethical problems and ease of finding ghostwriters for academic dissertations (go ahead, Google it), accusations of plagiarism have stung the British academy: the son of the late Libyan Colonel Gaddafi was investigated last year for allegations that his doctoral dissertation at the London School of Economics was penned by a ghostwriter.
He said that the scientific community had identified potential problems and ethical issues well in advance and had engaged the public in what he called an open and honest debate.
One of the virtues of adult stem cell research, so the story goes, is that it does not suffer either the ethical concerns or scientific problems involved in embryonic stem cell research.
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The ethical issues that actually create most problems in companies often seem rather mundane to outsiders.
Here is where an entrepreneur can confess his or her struggles with cash flow problems, management challenges, ethical dilemmas and so forth, without fear of exposure or ridicule.
Knotty problems of the same sort arise whenever you add an ethical overlay to what is normally a purely economic decision, like shopping for coffee, paying an electric bill or buying an index fund.
And the problems of fairness and justice have always been central to human ethical reflection.
Researchers say there have been so many health problems in cloned animals, including Dolly herself, that it would not be ethical to attempt to create a cloned human.
Some scientists have criticized genetic engineering of food crops on both scientific and ethical grounds for many years, but the Cornell study represents some of the first evidence of possible problems associated with genetically engineered food crops.
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