Here is the post at W4 that I have been working on. It highlights one problem apiece with each of the only two methods for procuring usable vital organs. In each case there are very real concerns as to whether the dead-donor rule is being followed or indeed whether it can be followed.
There is a danger in pointing this out: Because almost no one is ready to conclude that organ transplant should be abandoned, and because most non-Christian ethicists and scientists hold implicitly or explicitly to some sort of personhood theory that makes them dislike the dead-donor rule anyway, this may be used as an excuse for ditching the dead-donor rule and harvesting anyone who is severely cognitively disabled rather than ditching organ transplant. In fact, that's exactly what's happening, as I pointed out here.
But the truth will out anyway. Actually, it's the very ghouls who are pushing for ditching the dead-donor rule who are in some cases telling us these unpleasant facts, so there's no point in our hiding them from ourselves and from the public lest worse befall. Better for pro-lifers to know all the facts and guide their own actions and ideas accordingly.