Do not prevent jihadists from leaving our country. Let them leave, with as many friends as possible. If it helps, I am even prepared to go to Schiphol to wave them goodbye. But let them never come back. That is the condition. Good riddance. And, as far as I am concerned, anyone who expresses support for terror as a means to overthrow our constitutional democracy has to leave the country at once. If you are waving an ISIS flag you are waving an exit ticket. Leave! Get out of our country!