Travelling abroad into the unknown can be a great adventure, which can turn into a nightmare for a family when a close relative goes missing without a trace.
British journalist Michael Dixon went missing during a trip to Costa Rica two years ago. Rajan Datar spoke to his brother, David, about the obstacles the family have faced as they continue to try and trace Michael.
Get in touch with Fast Track via
Watch Fast Track on the BBC World News channel on Saturdays at 0430, 1230 and 1930 GMT or Sundays at 1930 GMT.