The battle of los angeles is evidence of panic in part set off by a sub attack on the coast, really only. I mean, it would have taken only a couple of hours for a sub to get from santa barbara down to ela. These days, you find out we have a good sized great white shark prowling off the coast, and people will panic. Imagine how we do with active submarines. That's why keeping the fear down as important, because if the fear takes off, it will devour lots of things that you'll be sorry about later.