Ethical issue: critics of powerpoint claim that flashy graphics, sound effects, and animation often conceal thin content. Consider, for example, the findings regarding the space shuttle challenger accident that killed seven astronauts. Report authors charged that nasa scientists had used powerpoint presentations to make it look as though they had done analyses that they hadn’t. Over-reliance on presentations instead of analysis may have contributed to the shuttle disaster. What lessons about ethical responsibilities when using powerpoint can be learned from this catastrophe in communication?