So they're managed to clone a human embryo. This sounds wonderful, until we hear that the results are not really usable quality. Other cloning research seems to be having similar issues with concerns that the results of experiments may not be as reliable or “normal” as we are being told.. Even Dolly, cloning's pinup girl, is not quite what she appears to be.

We keep being told that cloning is going to be useful. We're going to save people's lives. We're going to bring extinct animals back from the dead. Didn't we learn anything watching Jurassic park? Sure, I don't think we'll find ourselves having to run away from pack hunting carnivores, but aren't we rushing into this before we have a chance to think about it?

Cloning technologies may be the solution to many of our problems, but do we really want to open this can of DNA-encoded worms before we understand the implications and pitfalls? Should we be playing god before we read the manual?