Describe the strategies which DuPont's management used to respond to the ozone controversy before the 1978 ban. Identify the social costs and risks associated with these strategies and the populations that bore these costs and risks. Identify the social benefits deriving from these strategies and the groups that derived these benefits. In your judgment, did the social benefits outweigh the social costs and risks? Explain your answer fully.

Evaluate the moral quality of DuPont's strategies after 1978 in terms of (a) the utilitarian costs and benefits associated with those strategies as compared to other alternative strategies, (b) the moral rights of the various parties affected, and (c) the just or unjust way in which benefits and burdens were distributed among various populations by these strategies.