GIGLIO PORTO, ITALY - JANUARY 23: A salvage worker points to a map of the Costa Concordia as preparations are made for diesel recovery from the cruise ship Costa Concordia that lies stricken off the shore of the island of Giglio on January 23, 2012 in Giglio Porto, Italy.  More than four thousand people were on board when the ship hit a rock off the Tuscan coast. The official death toll is now 15, with a further 24 people still missing. The diesel recovery operation will start tomorrow.  (Photo by Laura Lezza/Getty Images)