I don't fact check, because if I was fact checking, I would be there all day and that's for the journalists to do, but if I read a particular story and there is a fact and I wonder whether it is true or not, or if it isn't true would lead to a problem, then I ask them, "Where did this come from? Can you be sure of this? Where did you find it? How did you come across this information?" and I expect them to go back and I expect an answer before I clear it.