[colmmacc]

"Blind Man's Bluff" is a great book about the work of espionage submarines and includes many anecdotes from other boats that were based at Kitsap.

Tapping cables is definitely something that's been done through history, but more of the stories were about things like recovering the remains of enemy test missiles for physical intelligence. Now that that fiber traffic is routinely encrypted anyway, I wouldn't be surprised if more of USS Jimmy Carter's missions are recovering North Korean rockets.