If you really where a 20+ year submariner then you should already know the screw is not the loudest thing onboard by a long shot. Also if you bothered to read the full article they are not using just sound to detect.
Granted this would only pertain to some of the current fast attack missions in regards to some countries. SEAL delivery is a relatively close up mission considering how big the ocean is.
Valid point. Even encryption is only "secure" for a limited time. I could sniff the traffic, store the data and wait until the encryption is crackable. For most transactions that is good enough as our passwords are probably not relevant in 10 years. For some transactions it may not be enough because you probably would have the same bank account in 10 years. Granted the cost to capture and save for a later date probably outweighs the potential to exploit.
At the same time I would not expect a front end JS/CSS developer to know the specifics of the entire system, only the parts of his/her subsystem. That is to say they should know XSS/CSRF like the back of their hand, but probably don't need to fully understand a stack overflow. On the other hand if you write C/C++ or any other low/mid level language XSS probably means nothing to you and stack overflow is highly important.
Granted this would only pertain to some of the current fast attack missions in regards to some countries. SEAL delivery is a relatively close up mission considering how big the ocean is.