There's another sub-distinction (hah) I'd like to make: Smoke versus decoys. So instead of 9000 devices to blanket the area with noise so that the movements of

There's another sub-distinction (hah) I'd like to make: Smoke versus decoys. So instead of 9000 devices to blanket the area with noise so that the movements of the real submarine are hard to discern, you could have 90 decoys which are localized, and the real sub is "hiding in plain sight." In other words, the difference between obscuring "where" versus "which one."