'Titan' submersible overshadows the death of migrants

The search for the Titanic submarine has now ended. The White House has offered its condolences to the families. But did you hear about the hundreds of migrants who died at sea? Did you know they were over 500 of them? Why did the media not cover that story? Why did the global media only concentrate on the 'Titan' sub? What's the real story? Vikram Chandra brings you the details