Because our bodies are built from the same stuff....

We are little biological/electrical machines, and we need to have that in mind as we allow other organisms to be messed with.  We are on a life raft, if you will, called Earth.  We all have physical forms, in order to be here, that conform to it's laws.

We have a very personal interest in what goes on in the altering of even plant gene pools because we eat plants, and they become "us", our bodies.

Some heedless, and some believe, Godless things are going on, and it's my belief that we will all be affected, and rather sooner than some of those working on gene alterations is willing to admit.  

From Reuters via Grist.

To whatever extent you are able, eat organic foods, vegetables, grains and meats.  It's more important than it ever was.