Can the man who found the Titanic find Amelia Earhart?

In 1937, American aviator Earhart vanished during her attempt to fly around the globe, leaving no trace. 

Now, a new expedition has set off for Nikumaroro, a tiny atoll in the Pacific, seeking to find her plane and possibly her remains.

And it’s headed by another legend – the man who found the wreck of the Titanic, Robert Ballard.