>LOUISVILLE, Kentucky (CNN) -- A team of surgeons has performed
>the first hand transplant in the United States
>"there are many doctors who, technically, could perform the surgery,
> but are held back by ethical complications."
No, the argument (as I understand it) is that such surgery currently requires life-long major immune suppression. Without a heart, you die anyway. Without a hand, you are majorly inconvenienced, but not nearly as badly as by having yr immune system deliberately knocked out - for life (however long that then happens to be).