If the massive undersea search for Malaysia Airlines flight 370 turns up nothing by the end of May, the three countries leading the effort will re-examine their data and come up with a new plan.
That's according to Malaysia's transport minister - on the eve of the anniversary of the plane's disappearance.
MH370 vanished during a flight from Kuala Lumpur to Beijing.
Liow Tiong Lai remains cautiously optimistic it'll be found in the southern Indian Ocean:
