It appears to have been taken from the old U.S. Navy submarine USS R-14 (later SS-91), which served from 1919-1945, it looks like she has not insubstantial way on when this picture was taken. Obviously, safety is more of a concern nowadays. I'll be honest, I've always been in favor of taking all the reasonable safety precautions you need to when doing potentially dangerous evolutions. I know a lot of Submariners get frustrated with the safety rules, but I always supported them -- even the fire watches.
What do you think? Is safety overdone in today's Submarine Force, or is it at the right level, or do we need to think about it even more?