every seven miles, in America, there is at least one McDonald's. Not a hospital, mind you, or a police station, but a McDonald's, every seven miles. I mean, that's sort of scary, if you think about it.
Scientists surely have a special responsibility. It is their ideas that form the basis of new technology. They should not be indifferent to the fruits of their ideas. They should forgo experiments that are risky or unethical.