The phrase "most terrifying incident in a submarine" is somewhat redundant, because every second in a submarine is terrifying. Even when nothing is happening. Getting depth charged by the Russians certainly doesn't help. W. Craig Reed, AKA Bill, experienced both of these things and lived. I guess it takes a certain type. Spies of the Deep: The Untold Truth About the Most Terrifying Incident in Submarine Naval History and How Putin Used The Tragedy To Ignite a New Cold War - amzn.to/2KL8I2U