Graham Veale is the author of "New Atheism: A Survival Guide" which looks at some of the popular objections of new atheism, including the 'Flying Spaghetti Monster' parody of God.
Rory Fenton represents Secular Humanist student groups and defended the atheist society at London's South Bank University when their Flying Spaghetti Monster posters were removed. They debate the use of parody and balancing free speech and religious sensibilities.
Unbelievable?