@CNN: For years, the incredible discovery of the Titanic’s wreckage was thought to have been a purely scientific effort. But Robert Ballard, who made the find, said the expedition was part of a secret US military mission to recover two sunken nuclear submarines. https://t.co/ggsyUrgEWx https://t.co/ZmjZ93jCKe

For years, the incredible discovery of the Titanic's wreckage was thought to have been a purely scientific effort. But Robert Ballard, who made the find, said the expedition was part of a secret US military mission to recover two sunken nuclear submarines. https://t.co/ggsyUrgEWx pic.twitter.com/ZmjZ93jCKe

— CNN (@CNN) December 15, 2018