JOHN ASMUSSEN is an amateur naval historian who was studied the battleship 'Bismarck' since 1977. In 2000, he published what today is the premier website on the 'Bismarck'. In 2001-2002, he worked for director James Cameron on a $27.5 million dollar documentary project titled James Cameron's Expedition Bismarck. In June 2002, he dived to the wreck of 'Bismarck' together with Cameron. In 2004, he helped a Norwegian museum to present an exhibition on the 'Tirpitz'.