Today Alan Doak looks at DNA Trail: The Promise, a podcast about Laura Ancell who is searching for the real family of her late father. He also discusses Titanic - Ship of Dreams where host Paul McGann explores what is known and what is not known about the build, launch and ultimate demise of the Titanic.
The bow of the Titanic, seen in an image taken during a historical 1986 dive. Photo: AFP / Woods Hole Oceanographic Institution / Handout
