Qui est Paul-Henri Nargeolet, le Français disparu à bord du sous-marin parti explorer le Titanic ?

JOEL SAGET / AFP Paul-Henry Nargeolet, director of a deep ocean research project dedicated to the Titanic, poses next to a miniature version of the sunken ship inside a new exhibition, at 'Paris Expo', on May 31, 2013, in Paris. Over a century after the sinking of the famous ship, a Titanic exhibition in Paris will open to public from June 1 to September 15, and promises to present "real objects, and real stories". AFP PHOTO / JOEL SAGET (Photo by JOEL SAGET / AFP)