diesel subs are quieter than nuclear subs and can often hide in an audio blind spot behind boats. "Blind Man's Bluff" is a great read on submarine warfare after

diesel subs are quieter than nuclear subs and can often hide in an audio blind spot behind boats. "Blind Man's Bluff" is a great read on submarine warfare after World War 2 and a lot of the things that go with it. Ship stalking is a some what regular thing by all sides.