Scientists have found six molecules that mimic DNA's ability to store and copy genetic information and evolve. Why does this not seem like an unalloyed blessing? Jesus, we don't have enough problems already, we need to create alternative life forms possessing characteristics we know nothing about?
This synthetic DNA is called XNA. Sounds like something right out of the X-Files. And it gets better. They are not biodegradable, unlike regular DNA and RNA. Perfect. Let's create new, indestructible life forms and see what they can do. Gee, what could go wrong with that?