Abstract
Emerging fields of science often create new challenges for ethics and law. In assessing the broader societal implications of scientific discoveries, a reasonable analytical starting point is determining how the discoveries compare with existing science. If the new field is substantially similar to an established one, then the ethical and legal analyses are likely to be comparable. On the other hand, if the new scientific developments are extraordinary in kind or degree, then a new analytical framework and new approaches to ethics and law may be necessary.