So if you're talking just about genetic modification, I think the question that remains is how any genetically modified organism will interact with the environment once it's released. We don't actually know what happens in terms of protein folding or interbreeding or genetic mutation, which is essentially the framework for evolution. We don't really understand it. So I think we have to take incredible precautions when we release them. It's not that we haven't done things like this before. We've released animals into our environment. We've released invasive plant species we're still dealing with. It's part of humans' thinking that we can do whatever we want and carry things wherever we want to go. There are also things we can't control.
On March 3rd, 2011. See this statement in context.