I agree with the idea of having it very heavily regulated, but right now it simply isn't. For some reason no one wants to discuss and figure out rules for this yet, but I'm sure we will have to do that in the future once we start seeing some "crazier" results.
We're not quite at the point where we can really genetically engineer humans or big animals yet, but we're able to do it with small invertebrates, bacteria and other small organisms. But it's only a matter of time before we have the knowledge needed to modify bigger organisms. (The reason behind this boils down to the length and complexity of the DNA in the organisms; shorter DNA is obviously a lot easier to research, understand, and modify).