This is some of the coolest/scariest stuff I've ever seen. The GRASP Laboratories (General Robotics, Automation, Sensing and Perception) at the University of Pennsylvania has been hard at work on all kinds of bleeding edge tech, and it looks like they've taken some giant steps toward building autonomous flying machines that will soon bring about the end of mankind.
Ok, that might be a bit of an overstatement, but wow, this is some very scary sci-fi stuff here. It's actually very cool and potentially useful in the hands of the right people, but imagine 5 more years worth of tech growth and then plop it in the hands of some crazy people. So watch out... the future is coming after you!