http://www.bbc.co.uk/worldservice/ne...y_debate.shtml
Does pornography provide 'a good public service'?
That was the topic debated on Thursday night at the Cambridge University Union Society, where a packed house listened to arguments for and against the motion.
Two of those participating in the debate were Gail Dines, author of Pornland: How Porn has Hijacked our Sexuality, and Anna Span, an adult film director and producer.
World Update's Dan Damon brought them together to recreate the debate.
He asked Anna Span first: In her opinion, what is porn good for?