Cannibalism is usually seen as wrong, not because we can catch diseases from the meat,but because it is wrong to kill people for food. If they die of disease, it *is* stupid to eat them. If they die of natural causes, why eat them if there are other meats around? And if there aren't, then it isn't a bad thing to do, look at those rugby players whose plane crashed in the Andes. Nothing reprehensible about *their* cannibalism.

The funniest thing about cannibalism is that the brits apparently pronounce it canNIBBLEism.

Sex with close relativers is usually gross to people, which is a great biological holdover from the days before contraception. It's generally a bad idea to do things that are gross; we got wired that way for a reason. With adult consent and all, I wouldn't think you were IMMORAL for sleeping with your sibling, but I would think it gross.

It may well *be* immoral for people with genetic defects to insist on having children. But it's definitely immoral to impose sterilization on them for that reason. And anyway, who *doesn't* have a genetic defect? I am of the opinion that it is a biological(rather than moral) imperative for people with good vision, good teeth, and good senses of humor to have many, many, many children - to prepare for the fall of civilization.

And if you want organ banks, read Larry Niven's tales of known space - people pass laws calling for the death penalty for jaywalking, as long as the condemned go into the organ banks.