To exercise maximum vigilance. simon jones, bbc news. we're joined now by our ireland correspondent, chris page. people have been fearing this for the past week, how significant is this news for police officers and staff? as you say, it hasn't been a surprise, but it certainly is significant, and the police now say they are working towards their worst case scenario after this data leak, that the information is in the hands of dissident republican paramilitary groups who are opposed to the peace process. just to remind you of the heightened dangers police face here in the course of doing their ...