You know that part in the horror movie where somebody does something that more or less gives the monster a perfect opportunity to eat or dismember you? Skinny dipping alone at midnight. Making out in a graveyard. Playing hide and seek in an old abandoned warehouse. You get the idea.
I feel like I'm watching that part of the movie as robotics scientists at the University of Pennsylvania develop swarming helicopter robots. I mean what could go wrong with swarms of formation flying nano robots, right? Oh wait, I have an idea. Lets make them self replicating and give them a desire for self preservation at all costs.
Its almost as creepy as that chainsaw powered robot dog.