It is a bit like Sosus, only from "above" in a way.
They can certainly litter the seas which such craft, but then those probably could be hacked and used against their creators (still waiting for the first IS drones), they would need batteries and solar cells (or nuclear drive?), all much too prone to failure on the high seas i think.
I take it a satellite surveillance using algorithms comparing normal/disturbed wave action combined with gravimetry will be the better solution.
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>^..^<*)))>{ All generalizations are wrong.
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