I can't see why anyone would go to a conference in a police state where you could get arrested for even possessing a meme that might offend the border security blackshirts, much less get arrested, deported, or shot without any rights or recourse whatsoever. Why not have the conference, or a sibling-conference, in a country that accepts foreign tourists with money, ideas, business acumen, and initiative? Even the interested parties from the police state could come to that.