 as soon as you've sort of spotted them, they've fixed themselves, haven't they? But that is definitely not the case here. We're seeing more and more problems as a sort of dominoes effect still fanning out. And even if the root problem itself is fixed, I think we are definitely looking at a few hours before everything's back to normal. That was the BBC's Zoe Kleinman. American Airlines, by the way, has said just this morning it was able to re-establish its operations. Let's do the numbers.