Buzzing Penn drone 'can kill you in your sleep'

"The last we checked in with U Penn's frighteningly maneuverable little quadrotor, we noted that it could probably zip through your window and kill you in your sleep. Well, now it can fly through windows while they're moving. Guhhh," writes's Kyle VanHemert.

The General Robotics, Automation, Sensing & Perception (GRASP) lab at the University of Pennsylvania's Engineering school today "posted the aptly titled 'Aggressive Quadrotor Part II'" on YouTube, "showing off all of their drone's freaky new feats. It can buzz around in menacing circles, calculate an optimal path through several rings, and even squeeze through an opening that's on the move itself...

"Thankfully, we know that Daniel Mellinger and Vijay Kumar, the U Penn researchers behind the project, will only use their talented little bot for good." How do we know that?  Watch Penn's Quadrotor buzz through moving hoops and other feats with scary applications via Gizmodo.