Leader of 1985 search which uncovered the Titanic talks about the recently declassified impetus for the expedition: the search for the Scorpion and the Thresher...
http://www.timesonline.co.uk/tol/news/world/us_and_americas/article3994955.ece
http://www.timesonline.co.uk/tol/news/world/us_and_americas/article3994955.ece