A hundred years after crash, Titanic exhibit draws crowds

It was a century ago this year that the RMS Titanic hit an iceberg and sank into the depths of the North Atlantic, sending 1,500 people to a watery grave. The company that holds the rights to the liner's wreckage is organising several exhibitions around the world to mark the anniversary, including one in Las Vegas which is offering a treasure of artifacts to curiosity seekers.