I wonder if people downvoting consider your question to be a thoughtcrime or something. It’s a legitimate line of inquiry. Research happens because somebody is interested and writes a grant request that is accepted. Governments and institutions where the research happens have rules as well. It’s possible that the researchers, the folks reviewing the grants, and the people making the rules haven’t done a cost-benefit analysis that adequately covers the tail risks. For some kinds of research, the answer can be: no, we shouldn’t do this. It’s reasonable to publicly discuss these concerns.