It was a pretty good show, if you can catch it again on history channel check it out.
they talk about the 7 lost nuke subs like the thresher and scorpion.
they as talk about the Kursk and the canadian sub fire in the thread below, so its a new production.
I did not know a US sub put into Norway for emergency repairs immidiately after the kursk accident. Also there were long scratchs down the side of the kursk.