It is a relief to know that all is well with the sailors. I find this type of accident particularly distasteful because I tend to be claustraphobic in certain places. This was made clear to me when the US submarine Thresher:
http://www.ussthresher.com/memoriam.htmcould not surface back in 1963 and the entire crew was lost by suicide and suffocation. Just imagining what it must be like to know that you will suffocate slowly. Even now I'm taking deep breaths thinking about it.
But this is a time for happiness and gratitude; all were rescued. And perhaps a brief prayer for the souls of those on the Thresher and Kursk who perished.