How Google's Self-Driving Car Works

This is part 2/3 of the keynote presentation by Sebastian Thrun and Chris Urmson on self-driving cars at IROS 2011. Part 1/3 is here http://www.youtube.com/watch?v=z7ub5Doyapk. Part 3/3 is here http://www.youtube.com/watch?v=rOWhu_aa9kM. Read more: http://spectrum.ieee.org/automaton/robotics/artificial-intelligence/how-google-self-driving-car-works (Recorded using a pocket camcorder; apologies for the poor audio quality.)