'Have You Thought About . . .'

How do researchers talk to one another about the ethics of our research? How do you tell someone you are concernened their work may do more harm than good for the world? If someone tells you your work may cause harm, how do you receive that feedback with an open mind, and really listen? I find myself lately on both sides of this dilemma--needing both to speak to others and listen myself more. It is not easy on either side.