The search for Malaysia Airlines flight MH370 is set to resume more than a decade after the aircraft vanished while travelling from Kuala Lumpur to Beijing with 239 people on board. A fresh search in the southern Indian Ocean is being conducted by private marine robotics company Ocean Infinity, using advanced technology in hopes of retrieving answers to one of the world's greatest aviation mysteries. But families of passengers on board say they need transparency on the terms of the search, and clarity on the prospects for recovery.