I'm tired of people confusing Muslims with Islamic extremists either through their own ignorance, laziness or prejudice. I'm tired of people saying we need to get 'them' out of our country, as though the actions of a minority represent the views of so many other innocent people just like you and me.
Throughout modern British history, mass demonstrations and protests have often been demonised and depicted as the work of trouble-makers, hooligans and extremists. It was the same old story last week as 10,000 students descended on London to protest against tuition fees and the abolition of maintenance grants, which led to the arrest of 12 protestors.
The arrogance of those staying away is breathtaking. PEN exists to speak out for writers who are persecuted and threatened. As Salman Rushdie said, he hopes no one ever goes after the writers staying away. Still, it is easier to piss on dead cartoonists than to stand up to ISIS who crucify and behead.
What the liberal-left is practicing here is a worse form of Islamophobia - the fear of offending Muslim extremists. And White writers assuming that all Muslims get offended by Hebdo's cartoons - as if there are no secular, sober and sane individuals and political movements in the so-called Muslim world - is also a form of racism.
These rules aren't instructions on how to be funny. They certainly won't stop anyone taking offence. These rules are, however, a statement of what I hope is a reasonably clear moral position which preserves the right to criticise and caricature in such a way that the ideals of a liberal society are still upheld.