"Genetic engineering scares a lot of people, partly because we love making sci-fi
movies and video games starring walking humanoid horrors that resulted from
experiments gone wrong. And, while the idea of something like growing a human heart
in a sheep's body just seems wrong somehow, it probably seems less wrong to the
person who actually needs a heart transplant.
What we're trying to say is that as weird as it is, genetic engineering may save your life
some day thanks to things like ..."
See:
http://www.cracked.com/article_19343...your-life.html