MH370

Seems pretty unbelievable in this day and age that a jumbo jet can simply disappear into thin air.  And yet, that is exactly what seem to have happened to Flight MH370 which took off three and a half years ago from Kuala Lumpur bound for Beijing.  As best we can tell, and for reasons which we may never know, it veered off course and then vanished.  We think - think - that it most likely lies on the sea-bed somewhere in the Indian Ocean to the west of Australia - but where, and perhaps more importantly, why - we haven't a clue despite three and a half year's intensive work.  The Australian authorities, on winding up their enquiries,  have accepted that the failure to solve the mystery "is almost inconceivable and certainly societally unacceptable".