Robotics scientists at the University of Pennsylvania have taken the liberty of doing all of Skynet’s heavy lifting and designed mini-flying “quadrotor” helicopters that can fly in formation. The sound they make can only be described as a swarm of locusts descending upon your town to devour everything in sight. The applications of these things for Skynet are pretty obvious. I can only speculate that next they’re going to strap weapons to them and put them on an autonomous network patrolling our borders. What could go wrong?