Reasonable questions, valid points, no clearcut answers. Every country wishing to known as civilized should have strict - and I do mean strict - legislation on all aniaml experimentation. We probably cannot get around it yet, but every single instance should be controlled, monitored, and damned hard to get permission for. My mechanisms for pain and suffering really aren't any different from those of a dog, a pig, a cat, or a rat. I don't remember offering myself up for even modestly unpleasant experimentation in cancer research, and may not have the rigtht to impose such unpleasentness on others.

Of course, I am a hypocrite like everyone else, happily consuming whatever medication I may need, without asking awkward questions about its history and origins.