Anders Sandberg recently gave the keynote address at the IAA Planetary Defense Conference.
The conference, sponsored by the International Academy of Astronautics, took place 9-12 May 2011 in Bucharest.
To read Anders' summary of progress documented at the meeting on mapping the trajectories of Near Earth Objects (NEOs) and figuring out ways to deflect them if they will hit the Earth, visit the Institue of Ethics and Emerging Technologies website http://ieet.org/index.php/IEET/more/sandberg20110513
Link to the 2011 IAA Planetary Defense Conference website http://www.pdc2011.org/