On Tuesday 8th December 2009, Professor Stephen Guest at the UCL Faculty of Laws, gave a speech opposing the recent ban on the possession of extreme pornography. He argues that genuine freedom of expression requires the protection of all manner of thought, including the obscene. The video of his lecture can now be viewed here. His extended piece on the subject, Respect for Bad Thoughts, can be downloaded here. He has written a comment for Backlash here.