The youtube channel smarter every day is doing a series about live aboard a nuclear attack sub (different class than the one in the article, Los Angeles class IIRC) during an exercise where they navigate under ice, called ICEX. which might be of interest if you like this article. It's obviously propaganda but it is very interesting nonetheless.
actual submarine part: https://youtu.be/RXXMJAU6vY8
the leadup and context surrounding the exercise: https://youtu.be/5d6SEQQbwtU