NIH Can't Be Trusted to Regulate Animal/Human Research

The National Institutes of Health is considering funding research that will inject human stem cells into animal embryos, thereby creating human/animal chimeras.

We have to be careful how we react to such stories and not assume that all such human/animal research is, by definition, unethical. For example, transgenic animals -- that is, an animal with a gene or genes from another species -- have been created that contain valuable medicinal properties in their milk (as just one example), withou...