But at what cost? Tobacco plants growing in a hospital laboratory in London, genetically modified to include an algae gene, are said to provide an effective anti-HIV drug. When you bring in medical justifications for ethically dubious practices, you find many previous opponents back off and begin arguing the case for rather than against—or at least they divide their views into contextual acceptability or no: you can do it for this reason, you can’t do it for that reason. We see this all the time with regard to animal testing. It’s okay, some say, to test on animals, to torture [...]