Can we rephrase the question as “using aborted foetuses in research” or something? I think that’s the question the OP wants to explore, and I think there are plenty of people who do think that is wrong, and support the war in Iraq.
It took me a while to get these arguments, but I think I have.
The agument for mutual exclusivity
The only objection anyone has to the research is that it involves killing, or using killed, foetuses. No one has any other objection, right? If so, the objection must be that the killing is wrong, even for the greater good. But in Iraq, surely the only argument for it is that the deaths for the greater good are necessary. This appears to be a contradiction.
Another argument could be that the ratio of people killed/saved is greater. Does anyone make this claim? I have literally no idea of the figures.
Does this make sense to you? Are there any other objections to this argument than the one below?
The rebuttal*
(1) Delierately killing someone is worse than (2) doing something you know is likely to kill someone, but not certain. I’m not saying this is necessarily a justification, but many people believe it in some cirumstances.
To illustrate this, it’s analogy time with Dr. Science! <analogy>Suppose someone has taken a number of hostages. (2) You have a gun, and are a good shot, but he’s holding a hostage in front of him. The other hostages will die if you do nothing. You shoot him, with the possibility of hitting the hostage he’s holding. * I think most people would see this as regrettable but necessary. If you disagree, I can try to find another analogy, or you can just reject this argument*. (1) Now, let’s suppose you’re on a roof above him. Someone walks past, and you throw him off, squashing the hostage-holder. (Assume there was no other object to hand, and you couldn’t sacrifice yourself.) Most people would think this was wrong. If you disagree, blah, blah, ditto.</analogy> Is the analogy clear? Do you see why some people might hold both positions?
*Heh.