Yes, but it spikes BEFORE the attack begins, which means we learnt someone thought there was a string reason to believe things were about to change earlier than we otherwise would have.

That's the whole point, isn't it?

And if you're going to tell me the paragraph I quoted nullifies what I've said, would you please explain how? Obviously I don't currently understand it the same way you do, and I have asked for help understanding what I'm missing. Saying, "You're missing it," isn't helpful.