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    Meet the U.S. Navy's spy 'fish'

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Meet the U.S. Navy's spy 'fish'

Silent Nemo, an underwater robot, is being tweaked to go into hostile waters to spy on enemies and protect U.S. ships.

Meet the U.S. Navy's spy 'fish'

Silent Nemo, an underwater robot, is being tweaked to go into hostile waters to spy on enemies and protect U.S. ships.