Washington The United States Canada Britain and France will work together to increase protection for the Titanic and its wreck site under legislation the US administration sent to Congress FridayState Department spokesman Sean McCormack said concerted action by the four countries most closely associated with the Titanic would effectively foreclose financing for and the technical ability to conduct unregulated salvage and other potentially harmful activitiesMuch of what remains of the Titanic rests underwater about 560 kilometres from Newfoundland where the British liner sank on April 15 1912 after hitting an iceberg A total of 1522 passengers and crew were killed in the wreck More than 700 survived